Mark 23 Manual

8/9/2019 Mark 23 Manual

1/48

1

CONTRACTNUMBERN00164-94-C-0040

SW

370-BD-

OPI-

01

0

Oper

ator

s

Man

ual

Mark2

3Pi

stol

,Semi

-autom

ati

c,

Cali

ber

.4

5

ACP

Heckler&Koch,Inc.,October

1996

21480PacificBlvd.

Sterling,Virginia20166-8903

UnitedStatesofAmerica

Telephone(703)450-1900

W

A

R

N

I

N

G

A

fir

earm

has

th

e

capabili

ty

of

takin

g

your

lif

e

or

th

e

lif

e

of

som

eon

e

el

se!

Be

ex

tr

em

el

y

car

ef

ul

w

ith

your

fir

earm

.

An

acci

den

t

can

o

ccur

at

an

ytim

e

an

d

is

alm

ost

alw

ays

t

he

resul

t

of

not

foll

owin

g

basi

c

saf

et

yr

ul

es.


2/48


3/48


4/48

4

CHAPTER

1

INTR

OD

UCTI

ON

SE

CTI

ON

I

-

GENERAL

IN

FORMATI

ON

TheHKMark23.45ACPpistolgiveshootersmatch

gradeaccuracyequaltothatoft

hefinestcustommade

handgunsyetitexceedsthem

oststringentoperational

requirementseverdemandedof

acombathandgun.

TheMark23providesthisaccuracywithouttheneedfor

hand-fittedpartscommonincustom-builtmatchpistols

costingthousandsofdollarsmore.RepairoftheMark23

isreducedtoasimplepartsexchange.

TheHKMark23,isacommercia

lmodeloftheU.S.

GovernmentissueMK23,MOD

0pistolandisavailable

inlimitednumbers.Designatedt

heMark23,itisalmost

identicaltotheMK23,MOD0pistolusedbytheSpecial

OperationsCommand,rightdow

ntoitsthreadedbarrel.

ThemaindifferencesareslideM

arkings(Mark23as

opposedtoMK23)andabarrel

manufacturedtoSAMMI

headspacespecifications.

Oneofthemostthoroughlyteste

dhandgunsinhistory,

theMK23/Mark23projectoriginatedin1991whenHK

wasawardedadevelopmentcontractfortheSpecial

OperationsForcesOffensiveHandgunWeaponSystem,

consistingofacaliber.45pistol,detachablesoundand

flashsuppresso

r,andlaseraimingmodule(LAM).

Duringtesting,MK23pistolsmetthemoststringent

operationaland

accuracyrequirementseverdemandedof

acombathandg

un.MK23pistolsachievedmatchgrade

accuracyoflessthana2.5inchmaximumextreme

spreadin5-roundshotgroupsat25meterswithservice

ammunition.En

durancetestingdemonstratedaservice

lifeofover30,000roundsof+Pammunitionwithnoparts

breakage,withanadditional30,000roundscertifiedon

theslideandfra

me.

Tomeetthereliabilityrequirement,thepistolhadto

demonstrateaminimumof2,000meanroundsbetween

stoppages(MRBS)withbothM1911balland+P

ammunition.TheminimumMRBSachievedintestingwas

6,027andthem

aximumwas15,122!

Duringover450

accuracytestfiringsfromaprecision

firingfixture,MK

23pistolsfarexceededthegovernment

requirement,av

eraging1.44inches,with65groupsof

lessthanonein

ch.Therewerefourgroupsof.5inches,

with5roundsgoingthroughthesamehole!Thisincluded

firingwithandw

ithoutthesound/flashsuppressor

attached.


5/48

5

Threepistolsweretestedfora

ccuracyafterfiringover

30,000rounds,thespecifieds

ervicelifeofthepistol,and

stillmetthenewpistolaccurac

yrequirement.An

innovativedesignfeature,ahightemperaturerubberO-

ringonthebarrelthatsealsthebarrelintheslideuntil

unlocking,ledtothisremarkab

leachievement.TheO-ring

lastsbeyond20,000roundsandcanbereplacedbythe

operatorwithouttoolsinsecon

ds.

Tomeetoperationalenvironmentalrequirements,the

pistolwasfunctiontestedat+140and-250F,immersedin

saltwater,exposedtosurf,salt-fog,sand-dust,mud,

icing,unlubricated,andavarie

tyofotherfouled

environments.Aspecialmaritimesurfacecoatingprotects

thepistolfromcorrosion,inalloftheseoperational

environments.

Thebarrelisthreadedtoacceptaccessoriessuchasa

flashandsoundsuppressor.T

heuniqueHKpolygonal

boreprofileincreasesmuzzlevelocityandservicelife,

reducesborefoulingandease

scleaning.

TheframemountedMK23decockingleverisseparate

fromtheambidextroussafetylever.Itallowsthehammer

tobeloweredquietlyandsafelyfromthesingleaction

position.Whenthehammeris

down,theambidextrous

framemountedsafetyleveris

lockedinthefireposition

sothatthepistolisalwaysrea

dyfordoubleaction

operation.Wh

enthehammeriscockedandlockedin

singleactionmodewiththesafetyleveronsafe,the

decockerisblockedsothatthepistolisalwaysreadyfor

singleactionoperation.Evenwiththesafetylever

engaged,the

slidecanstillbemanipulatedtoloadand

clearthepisto

l.

Theextended

slidereleaseleverandtheambidextrous

magazinereleaseareeasilyoperatedwithoutadjustment

ofthefiringgripusingthefiringhandthumborindex

finger.

Othernotable

featuresincludeaccessorymounting

groovesonth

eframe,amechanicalrecoilreduction

systemthatreducesrecoilforcestotheshooterand

componentso

fthepistolbyasmuchas30%,apolymer

frame,aone-piecemachinedsteelslide,andalaw

enforcement/militarymagazinecapacityoftwelverounds.

Theweaponisaimedusingeitherironsightsoran

optionallaser

aimingcomponent.Theironsightsprovide

a3-dotsightpicturewithwhiteoroptionalself-luminous

tritiumdots.

TheMK23be

camethefirstcaliber.45ACPpistolto

enterU.S.militaryservicesincethevenerable

GovernmentModel1911A1.OnMay1,1996,thefirstMK

23pistolsweredeliveredtotheU.S.SpecialOperations

Commandfor

operationaldeployment.


6/48

6

SE

CTI

ONII-PI

ST

OLDE

SC

RIPTI

ON

1.2NomenclatureF

igure1LeftView

1.3PrincipleofOperation

A.TheMark23usesamod

ifiedlinklessBrowning-

styleshortrecoilsystem

tolockandunlockthe

breech.

Figure2RightView

B.Uponfiring,thepressuredevelopedbythe

propellentgasforcestheslideandbarrel

assemblytotherear.Afterapproximately3mm,

thelockingblockwillstoptherearward

moveme

ntofthebarrelasthebarrelispivoted

downwardduetotheengagementoftheangled

surfaces

ofthelockingblockwiththoselocated

rearsight

right

safetylever

e

xtractor

barrellocking

block

frontsight

ejection

port

accessory

mounting

groove

sliderelease

axlerecess

trigger

magazine

release

lanyardloop

slide

recessforslide

release/stop

sliderelea

semagazine

frame

accessory

mounting

groove

ma

gazine

re

lease

decocking

lever

leftsafety

lever

threadedinsert

foraccessorylocking

flared

triggerguard

hammer

threadedbarrel


7/48

7

intherecoilspringguiderod.Thelockingblock

willdisengagefromtheslideandtheslidewill

continuerearward.

Theextractorlocatedintheslidewillthen

extractthefiredcartrid

gecase,theejector

locatedintheframeontheleftsideofthe

magazinewellwillejectthefiredcaseasthe

slidecontinuesrearwa

rdandcocksthe

hammer,andcompres

sestherecoilspring.

Theslidemovesforwa

rdfeedingthenext

cartridgefromthemagazineintothechamber

andlockingtothebarrelbreech.

C.Theslidelocksopena

fterthelastroundhas

beenfiredandejected

.

WARN

IN

G

Do

not

rel

y

on

th

e

sli

del

ock

to

determin

e

if

th

e

magazin

e

is

em

pty.

Alw

ays

ch

eck

vi

suall

y

an

d

ph

ysi

call

y

en

sur

e

t

he

pi

stol

is

not

loaded.

1.4MajorAssemblyGroups(SeeFigure3)

A.Slide-housesthefirin

gpin,firingpinblockand

extractor;cockshammerduringrecoil.

B.CapturedRecoil/BufferSpringAssembly

(withguiderod)-absorbsrecoilandreturns

theslideandbarreltotheirforwardpositions;

reduce

simpactofslideonreceiverduring

recoil.

TherecoilspringiscapturedbyaC-clip

onthe

endoftheguiderod.

C.ThreadedBarrel(withlockingblock)-

containscartridgeandpropellentgasesduring

firing.

Thelockingblockinitiateslockingand

unlock

ingofthebreechduringmovementof

slide.TheO-ringholdsthebarreltightinthe

slideu

ntilunlocking.

D.Frame

-servesassupporttoallmajor

compo

nents;controlsfunctioningofpistol.The

slidereleaselockstheslidewithbarreland

recoil/bufferspringassemblytothemetal

locking

insertcastintothesyntheticframe.A

lanyardloopisinthebottomofthegripfor

attachingalanyard.Thetriggerguardisflared

onbothsidestoprecludeaccidentalactuation

ofthemagazinereleaseduringholstering.


8/48

8

E.Magazine-holdstheca

rtridgesinpositionfor

feedingandchambering

.

F.SlideRe

lease-holdsslidetorearwhen

engaged

;releasesslidewhenleveris

depressed.

Figure3MajorAssemblyGroups

A.Slide

C.Threaded

Barrel

D.Frame

E.Magazine

F.SlideRelease

accessory

mountinggroo

vethreadedinsertfor

accessorylocking

O-ring

threads

barrellockingblock

flaredtriggerguard

lanyardloopinsert

C-clip

guiderod

recoilspring

bufferspring

B.CapturedRecoil/Buffer

SpringAssemb

lysafety

magazine

release

decocker


9/48

9

1.5

Techni

cal

Specifi

cati

ons:

Caliber

.45ACP(AutomaticColt

Pistol)

SystemofOperation

shortrecoil,semi-automatic

LockingSystem

Browningsystem(modified),linkless

Length

Barrel

5.87in.

(149mm)

Sightradius

7.76in.

(197mm)

Pistol

9.65in.

(245mm)

Weight

Magazine(empty)12or10rd.capacity

.24lbs.

(.110kg)

Magazine(w/12

rdsM1911Ball)

.81lbs.

(.366kg)

Magazine(w/10

rdsM1911Ball)

.72lbs.

(.327kg)

Pistol(w/empty

12or10rdmagazine)

2.66lbs.

(1.21kg)

Pistol(w/12rds

M1911Ball)

3.22lbs.

(1.46kg)

Pistol(w/10rds

M1911Ball)

3.13lbs.

(1.42kg)

TriggerPull

Single-action

4.85lbs.

(2.20kg)

Double-action

12.13lbs.

(5.50kg)

Height

5.90in.

(150mm)

Width

1.53in.

(38.8m

m)

Muzzlevelocity

M1911230grainball

886fps

(270m/s)

+P185grainJH

P

1142fps

(348m/s)

MaximumEffectiveRange

54.7yds

(50m)

MaximumRange(M1911ball)

1,467yds

(1,341m)

Rifling

polygonalborerighthandtwist

Magazine

staggered,12roundcapacity(10roundcivilian)

SafetyFeatures

1.safetylever(manual),

2.double-actionmodewith12.1lb.trigger

pull,3.firingpinblock,4.disconnector


10/48

10

SE

CTI

ONII-

GENERALDE

SCRIPTI

ON

2.2Descrip

tion:TheMark23isasemiautomatic,

magazinefed,recoiloperated,double/single-action

pistol,chamb

eredforthe.45ACPcartridgeupto,

andincluding

,thecommercial+Pcartridges.

W

A

R

N

I

N

G

Th

eM

ark2

3in

cor

por

ates

sin

gl

e

an

d

doubl

e

acti

on

mod

es

of

oper

ati

on

.

An

ytim

e

th

e

tri

g-

ger

is

pull

ed

wi

th

th

e

saf

ety

lev

er

in

th

e

fir

e

(down

)

pos

iti

on

an

d

ar

oun

din

th

e

ch

am

ber

,

th

e

pi

stol

willfir

efr

om

ei

th

er

th

eh

amm

er

down

(DA

)

or

cock

ed

posi

ti

on

(SA

).

CHAPTER

2

OPERATIN

G

IN

STR

UCTI

ON

S

SECTIONI-SERVICEUPON

RECEIPTOFMATERIAL

2.1InitialInspection.Upon

initialreceipt,thepistol

istobeinspectedtoensureitwasreceivedin

properworkingorder.

Step

Action

Reference

1

Removepistoland

items

fromcontainer

2

Removepackingm

aterial

3

Checkformissingitems

4

Fieldstripweaponand

inspectfor:

para.3.3

Missingparts

Properassembly

5

Clean,dryandlubricate

(ifnecessary)

para.3.7,3.9

6

Assemble

para.3.4

7

Safety/functionche

ck

para.3.5


11/48

11

CA

UTI

ON

A

pair

of

Univ

er

sal

Moun

tin

g

Gr

oov

es

located

on

th

e

fr

on

t

of

th

e

Mark

23

fr

am

e

all

ow

for

a

vari

ety

of

accessori

es

to

be

usedwi

th

th

e

pi

stol

.Im

pr

operl

y

d

esi

gn

ed

orin

stall

ed

accessori

esm

ayr

esul

tin

dam

age

to

th

e

Mark2

3m

oun

tin

g

gr

o

oves

an

d/or

th

eM

ark

23.

Such

dam

age

is

n

ot

cov

er

ed

un

der

warr

an

ty.

Be

cer

tain

to

use

onl

y

HK

Auth

oriz

ed

Accessori

es

an

df

oll

owin

stall

ati

on

an

d

pr

ecauti

on

s

car

ef

ull

y.

N

O

T

E

Accessori

es

desi

gn

ed

for

th

e

Univ

er

sal

Self-

loadin

gPi

stol

(USP

)

willn

otw

ork

on

th

e

Univ

er

salM

oun

tin

g

Gr

oov

es

of

th

eM

ark2

3.

2.3OperationandChara

cteristics

A.Double/SingleActio

n-Fordouble-action

(DA),pullingthetriggerwillcockthehammer

andimmediatelyrelea

seitdischarginga

chamberedround.To

firethefirstchambered

roundinsingle-action

(SA),thehammermust

bema

nuallycockedbeforepullingthetrigger.

Allsho

tsafterthefirstonewillbefiredsingle-

action

becausetheslideautomaticallyrecocks

thehammeraftereachshot.

B.Magaz

ine-Themagazineisproducedfrom

sheetsteelandhasatotalcapacityof12

rounds

.Theroundsarepositionedwithinthe

magaz

ineinastaggeredarrangement.Rounds

arevis

iblethroughtheviewingholeslocated

alongthebacksideofthemagazinehousing.

Theviewingholesaremarkedwithnumerals

denotingthenumberofroundsremainingwithin.

Theflo

orplatecanbeeasilyremovedfor

disass

emblyandcleaningofthemagazine

compo

nents.

C.Loade

dChamberIndicator-TheMark23

pistoldoesnothavealoadedchamber

indicator.Theextractordoesnotactasa

loaded

chamberindicator.

D.Decoc

kingLever-Thedecockingleverallows

theoperatortoquietlylowerthecockedhammer

withou

tconcernofanaccidentaldischarge.

When

thehammeriscocked,itmaybelowered


12/48

12

safelybymovingthedecockingleverfullyinto

thedecocking(down)po

sition.Thedecocking

levercannotbedepress

ed(andthereforedoes

notallowthehammerto

belowered)ifthe

safetyleverisengaged.

Thedecockinglever

alwaysspringsbackinto

itsdisengaged(up)

positionduetothesprin

gpressureexertedby

thedecockingspring.

E.SafetyLever-Thesafetyleverisan

ambidextrousthumble

verlocatedontherear

oftheframe.Itisactuatedbythefiringthumbof

theoperator.Thesafetyleverblocksthe

releaseofthecockedha

mmerwhenitisinthe

engaged(up)safepos

ition(SeeFigure4a).

Thesafetyleverisdepresseddownwardinto

thefireposition(SeeF

igure4b).Thesafety

leverisnotspringactuatedandthereforemust

bemovedmanuallyfrom

onepositiontothe

otherbytheoperator.

Figure4aSafePosition

Figure4bFirePosition

Thesafetylevercannotbeplacedinthesafe(up)

positioniftheh

ammerisuncocked(down).

W

A

R

N

I

N

G

The

pistol

should

always

be

carried

with

the

safety

le

ver

engaged

when

carried

in

the

single

action

mode.

While

there

is

a

spring

detentto

p

revent

this,

thesafety

lever

canbe

moved

to

t

he

fire

position

(down)

with

a

minimum

amount

of

force.

This

could

happen

during

careless

handling

or

during

removal

of

the

pis

tol

from

the

holster.

Always

check

the

posit

ion

of

the

safety

lever

during

handling.

leftsafety

lever

hammer

whitedot

leftsafety

lever

reddot

hammer


13/48

13

F.Frame-Thefrontand

backstrapsofthe

fiberglassreinforcedp

olymerframeare

checkeredtoensurea

firmgrip,evenwithwet

handsorunderconditionsofrapidfire.The

triggerguardisextend

ed,recurvedandgrooved

toprovideafirmgripw

henusingtwohandsor

gloves.Thebottomof

thetriggerguardisflared

onbothsidesinfrontofthemagazinerelease

levertoshieldtheleve

rfromaccidental

actuation.

Athreadedinsertism

oldedintothefrontfaceof

thetriggerguardandtheframeisgrooved

forwardofthetriggerguardforattachmentofan

accessorysuchasalaseraimingdeviceoran

illuminator.Theframe

isaone-piecemolded

componentwithmetal

inserts(lockinginsertand

guidingpart)castinto

theframeduring

production.Theslideridesonthesemetal

insertsduringoperatio

n.

G.SlideReleaseLever-Thisleverisusedtolock

theslideopenandfor

disassemblingthe

weapon.Asaslidesto

p,itisdepressedupward

bythemagazinefollow

erortheoperators

fingerastheslidetrav

elsrearwardduringrecoil

orman

ualoperation.Theslidereleaselever

engagestherecessvisibleontheleftsideofthe

slidea

ndisspringactuated.Thesliderelease

spring

holdstheslidereleaseleverina

diseng

aged(down)positionuntilrequired.Asa

disass

emblylever,theslidereleaseleveris

removedfromtheleftsideoftheframewhen

theslideisheldrearward(seepara.3.3).The

slidereleaselevercanbeactuatedbythefiring

thumb

oftherighthandedoperatorortheindex

fingerofthelefthandedoperator.

H.Magaz

ineReleaseLever-Thisambidextrous,

spring

actuatedleverholdsthemagazinewithin

thegripbyengaginginthenotchfoundinthe

upper

thirdofthemagazinehousing.

Depressingthisleverwiththefiringhandindex

fingerorthumbwillallowthemagazinetodrop

fromth

egrip.Themagazinereleaseleveris

shieldedfromaccidentalactuationbytheflared

trigger

guardandthedesignofthesynthetic

frame

surroundingthelever.

2.4Cycle

ofOperation.Beginswithweapon

loaded,hammercocked,safetyleverdisengaged.


14/48

14

Figure5F

iring

A.Firing-(SeeFigure5)

Pullingthetrigger

rearwardpullsthetrigge

rbarforward.The

triggerbarpivotsthesearactuatorupwards

whichdisengagesthefiringpinblock.Atthe

samemoment,thesear

ispivotedoutof

engagementfromthelowerofthetwoshelves

locatedonthehammer.

Thecompressed

hammerspringdrivesth

ehammerforwardinto

therear

endofthefiringpin.Thefiringpin

strikesth

eprimerofthechamberedround.The

propellentisignitedbytheprimerandpropellent

gasesarecreatedinsidethecartridgecase.

Theprop

ellentgasesdrivetheprojectiledown

thepolygonalborewhichspinstheprojectilein

aclockw

isedirectionasameanstostabilizethe

projectile

sflight.

B.Unlockin

g-(SeeFigure6)Thegaspressure

andenergyproducedbythepropellentgases

pushrea

rwardontheslide,whichislockedto

thebarre

lbytheengagementofthebarrel

lockingb

lockwithintheejectionportmilledinto

theslide

.Theopposingangledlockingsurfaces

incorporatedintothedesignofthebarrellocking

blockan

drecoilspringguiderodcausetherear

oftheba

rreltotiltdownwardastheslidemoves

rearward

.Bythetimetheslideandbarrelhave

recoiled

approximately5mm,theprojectilehas

lefttheb

arrelandthegaspressurewithinthe

chamberhasdroppedtoasafelevel.Thebarrel

lockingb

lockthendisengagesfromtheslide.

Theslideisnowfreetorecoilrearward

independentlyofthebarrel.

barrellockingblock(locked)

hammer

opposingangled

lockingsurfaces

firingpin

fifi


15/48

15

Figure7Ejection

E.Cockin

g-(SeeFigure7)-Astheslide

continuesrearwardtherecoilimpulseis

dampe

nedbythebufferspring.Therecoil

spring

iscompressedandthehammer

recock

ed.

Figure6U

nlocking

C.Extraction-Theemptycartridgecaseisheld

firmlyagainsttheface

oftheslidebytheclawof

theextractorasthesliderecoilsrearward.

D.Ejection-(SeeFigure

7)-Therimofthe

cartridgecasestrikes

thestationaryejector.The

emptycaseisejected

fromtheopenejection

port.

barrellockingblock

(unlocked)

recoilspring

guiderod

opposingangled

lockingsurfaces

ejectionport

fifi

slide

cartridge

case

recoilsprin

g

ejec

tionport

slide

hammer

ejector

fi fifi


16/48

16

Figure8Feeding

H.Locking

-(SeeFigure5)-Theslidepressesthe

barrelforward.Asitdoes,theopposingangled

surfaces

ofthebarrellockingblockandrecoil

springguiderodpivottherearendofthebarrel

upintoe

ngagementwiththeejectionportinthe

slide.Theslideisnowfullyforwardandthe

newroundisreadytobefired.

F.Feeding-(SeeFigure8)-Thecompressed

recoilspringdrivesthes

lideforward.Ifthe

magazineisempty,themagazinefollowerwill

lifttheslidereleasetoa

pointwhereitwillstop

theforwardprogressoftheslide.Ifthe

magazineisnotempty,thefaceoftheslidewill

makecontactwiththeto

proundinthe

magazine.Theroundwillbedrivenfromthe

magazinetowardsthechamber.Thetipofthe

projectileisguidedintothechamberbythe

magazinelipsuntiltheroundclearsthe

magazinecompletely.A

tthatmomenttheclaw

oftheextractorsnapsontotherimofthe

cartridgecaseasitbeco

mesparallelwiththe

bore.

G.Chambering-Theslide

pushesthecartridge

forwarduntiltheprojectileentersthemouthof

theforcingconeoftheb

oreandthefaceofthe

slidecontactstherearo

fthebarrellocking

block.

barrellockingblock

slideface

slide

recoilspring

chamber

fi fifi


17/48

17

2.5SafetyFeatures

A.SafetyLever-This

safe

tyblo

ck

stherele

aseof

the

cock

edh

amm

erin

theS

Amode.Th

esafe

tylev

er

isan

ex

tern

al,m

an

ually

opera

ted,am

bid

ex

trous

thum

blev

erlo

catedon

theleft

an

dtherigh

tsid

e

of

thefram

efurth

erm

os

tbackfrom

thetrigger.Th

e

safe

tylev

erm

ustbem

a

nually

actuatedbythe

opera

tor.Th

esh

aft

of

th

esafe

tylev

erm

ov

esthe

sear

blo

ckin

toapositio

nwh

ereit

blo

ck

sthe

mov

em

en

tof

thesear

a

ctuator.Th

esear

actuator,

inturn

,doesn

otallow

thesear

topiv

otforw

ard

an

d

thustheh

amm

er

cann

o

tberele

ased.En

gagin

gthe

safe

tylev

er

als

oin

terru

ptsthefun

ction

of

the

decockin

glev

er

an

dblo

ckstheh

amm

er

mech

anic

ally.Th

esafe

tylev

er

doesn

otre

strictthe

mov

em

en

tof

theslid

e.The

safe

tylev

erish

eldin

eith

er

thefire

or

safe

po

sition

byasprin

gdeten

t.

Th

esafe

tylev

er

cann

ot

bepla

cedin

thesafe

(up)

positionwh

en

theh

amm

eris

down

(un

cock

ed).

B.Double-ActionMode

-Thissafetykeepsthe

hammerinanuncockedconditionuntilthe

momentoffiring.The

double-actionmode

operatesasapassive

safetyfeatureinthe

pistolmuchasthismo

deofoperationwouldin

anyDArevolverorpistol.Thehammerisleft

uncockeduntilthedecisiontofireismade.Atall

timesthefiringpinislockedbythefiringpin

blockuntilthetriggerispulled.Approximately

12.1poundsofpressureonthetriggeris

require

dtocockandreleasethehammerinthe

DAmo

deofoperation.Themodeofoperation

alsopermitssubsequenthammerstrikesonthe

samechamberedroundbysimplyresqueezing

thetrig

ger.

C.Firing

PinBlock-Thissafetypreventsthe

firingp

infromstrikingtheprimerwhenthe

weapo

nisdropped,thehammerisbumped,or

whentheslideslamsforward.Thefiringpin

blockislocatedintheslideandblocksthe

forwardmovementofthefiringpin.Onlywhen

thetrig

gerisdepressedcanthesearactuator

pushthefiringpinblockupwardagainstthe

downw

ardpressureexertedbythefiringpin

blockspring.Oncetheroundhasbeenfiredand

theslidebeginstorecoil,thefiringpinblockis

pushedbackdownbythefiringpinblockspring

anden

gageswithintherecessprovidedinthe

center

portionofthefiringpin.


18/48

18

D.Disconnector-Thissafetypreventstherelease

ofthehammerunlessth

eslideisfullyforward

and/orthetriggerisrese

t(released)between

rounds.Thisimportants

afetypreventsserious

malfunctionsfromoccur

ring,suchasslam-

fires(roundsthatfiredu

ringloading),automatic

fire,oraroundbeingfire

doutofthebattery

(withthebreechunlocke

d).Thedisconnector

disconnectstheengagementofthetriggerbar

andthesearactuator.T

hedisconnectoris

engaged(operating)aftertheslidehasmoved

2mmtotherear.Theslidepressestheleading

edgeofthedisconnecto

rdownandinto

engagementwiththetriggerbar.Whenthe

slideisfullyforward,the

leadingedgeofthe

disengageddisconnecto

rresidesinarecess

providedinthebottomo

ftheslide.

SECTION

III

-

OPERATION

UNDER

NORMAL

CONDITIONS

W

A

R

N

I

N

G

Alw

ays

cl

e

ar

th

e

pi

stol

bef

or

e

han

dlin

g

it.

2.6Clearing

Procedures

A.TheMark23pistolisnotconsideredclearor

safeunless:

1.Thema

gazineisremoved,

2.Theslideislockedtotherear,and

3.Thechamberisfreeofbrassorammunition.

4.Thesafetyleverissetonsafe.

NEVERASSU

METHEPISTOLISCLEAR!

B.ToClear

thePistol:

1.Makes

urefingersareoutsideofthetrigger

guardandthepistolispointed

inasafe

directionatalltimes!

2.DecockHammerorEngageSafety-depress

decock

ingleverorengagethesafetylever.

3.Remov

eMagazine-depressthemagazine

release

leverandremovethemagazinefrom

thefram

e.


19/48

19

4.OpenSlide-lockslideopenbypullingslide

rearwardasyouengagetheslidereleaselever

(up).Watchforliveroundoremptycasetobe

ejected.

5.InspectChamber-inspectchamberforthe

presenceofaliveroundoremptycase:

a.Visuallyviewchamberthroughejection

port.

b.Physicallyinsertfingerintochamber

throughejectionp

ortandcheckfor

presenceofcartridgecaseinchamber.

c.Removeanyliveroundsoremptycases

fromthechamber

orfromwithinthe

weapon.

Thepistolisnowconsidered

clear.

2.7LoadingandUnloadingtheMagazine-(See

Figure9)

ThemagazineoftheMark

23pistolholds10rounds

of.45caliberammunitioninthecommercial

magazineand12roundsintheLawEnforcement/

Governmentmagazine.

A.LoadingtheMagazine-

1.Holdthemagazinein

onehand.

2.Hold

aroundbetweentheindexfingerand

thumboftheotherhandwiththeprojectile

pointingtowardsthepalm.

3.Presstherimoftherounddownagainstthe

front

edgeofthefollowerorthetoproundin

them

agazineandslidetheroundbackunder

them

agazinelips.

4.Repe

atsteps1-3untilthemagazineisfull.

Thev

iewingholesinthebackofthemagazine

allow

theoperatortoconfirmthenumberof

round

spresentwithinthemagazine.

WARNING

Forcefullyinsertingaloadedmagazineinto

theMark23maycausethepistolsslideto

close,c

hamberingacartridgeandmaking

theMark

23readytofire.

When

inserting

a

magazine,always

be

certain

thatthepistolispointedinasafe

directio

nwithyourfingersoffthetrigger

andout

sidethetriggerguard.Failureto

dosocouldcauseyoutounintentionally

firethe

pistol,resultinginseriousinjury

ordeath.


20/48

20

Figure9

LoadingtheMagazine

B.UnloadingtheMagazin

e-exertpressurewith

thefingeronthebaseofthecartridgecaseand

pusheachroundforwardoutofthemagazine

oneroundatatimeuntilthemagazineisempty.

2.8LoadingProcedure

A.AdministrativeLoading

-usedtoinitiallyload

thepistolbeforeitistob

efired.

MethodA(Sliderearward

,chamberempty)

1.Makes

urefingersareoutsideoftrigger

guardandpistolispointedinasafe


2.Insertm

agazinefirmlyintotheframe.Tugon

magazinetoinsurethatitisfullyseatedand

engage

d.

3.Depres

stheslidereleaselevertoreleasethe

slidean

dtochamberthefirstround.

4.Engagesafetyleverordepressdecocking

lever.

5.Remov

emagazineandtopoffwithone

additionalround.

6.Reinsertmagazineinsuringthatitisfully

seated.

MethodB(

Slideforward,chamberempty)

1.Makes

urefingersareoutsideoftrigger



2.Insertm

agazinefirmlyintotheframe.Tugon

magazinetoinsurethatitisfullyseatedand

engage

d.

3.Retracttheslidefullyandrelease.Donotride

slidefo

rward!


21/48

21

4.Engagesafetyleverordepressdecocking

lever.

5.Removemagazineandtopoffwithone

additionalround.

6.Reinsertmagazinein

suringthatitisfully

seated.

B.TacticalReloading-usedtoquicklyreload

pistoloncefiringhasb

egun.

MethodA(Sliderearward,chamberempty)

1.Makesurefingersa

reoutsideoftrigger

guardandpistolis

pointedinasafe


2.Keepeyesontarget

area.

3.Depressthemagazin

ereleasewithfingeror

thumboffiringhandtodropmagazine.

4.Atthesametime,retrieveafullmagazinewith

thenon-firinghanda

ndinsertfirmlyintothe

frame.Tugonmaga

zinetoinsurethatitis

fullyseatedandengaged.

5.Depressslidereleasetochamberfirstround.

6.Continuefiring.

MethodB(Slideforw

ard,roundsremaining

inmagazineandcha

mber)

1.Make

surefingersareoutsideoftrigger


direc

tionatalltimes!

2.Keep

eyesontargetarea.

3.Depressthemagazinereleasewithfingeror

thumboffiringhandtodroppartiallyempty

maga

zine.

4.Atthesametime,retrievefullmagazinewith

non-f

iringhandandinsertfirmlyintotheframe.

Tugo

nthemagazinetoinsurethatitisfully

seate

dandengaged.

5.Weaponisnowbackatfullcapacitywithout

rende

ringchamberemptyandweapon

usele

ss.

6.Continuefiring

2.9Ready

ingthePistolforFiring

Disengage

thesafetylever(ifengaged).Redhazard

dotwillbe

visibleabovesafetylever.


22/48

22

WARNING

1.BE

SURE

OF

YOURTAR

GET

ANDWHAT

S

BEHIND

IT

!Ev

en

a

.4

5

cal

iber

pr

ojectil

e

can

easil

y

pen

etr

ate

wood,

p

laster

boar

d

wall

s,

or

a

car

door

,

an

d

can

tr

av

el

as

far

as

on

e

mil

e!

2.

En

sur

e

th

at

all

par

ts

of

your

han

d

an

d

body

ar

e

kept

aw

ay

fr

om

th

e

mu

zzl

e

of

th

e

pi

stol

at

all

tim

es!

3.Alw

aysw

ear

eye

an

d

e

ar

pr

otecti

onwh

er

e

possi

bl

e

wh

en

firin

g

th

e

pistol

.

4.Wh

en

ev

er

th

e

pi

stolis

dr

opped

on

ah

ar

d

surf

acel

an

din

g

on

th

eh

amm

er

(cock

ed

or

down

),i

t

sh

oul

d

be

sen

t

to

th

eHK

Servi

ce

Depar

tm

en

t

as

soon

as

pr

acti

cabl

e

to

in

spect

th

e

sear

axl

e.

If

th

e

sear

axl

e

is

ben

t,

it

sh

oul

d

be

repl

aced.

2.10FiringthePistol

A.Single-actionmode(Ha

mmerback/cocked)

Affordsoperatorthebes

tandlightesttriggerpull

(4.8lbs.)forpreciseandaccuratebullet

placement.

Withmanualsafetydisengaged:

1.Aimatthetarget.

2.Firetheweaponbypressingthetriggerstraight

totherearwithgraduallyincreasingpressure.

3.Engage

thesafetylevertoremaininthesingle-

actionm

odeoncefiringiscompleted.

CAUTION

Sin

gl

e

act

ion

mode

tri

gger

pull

is

li

gh

ter

&

sh

or

ter

t

han

doubl

e

acti

onm

ode.K

eep

your

fin

ger

off

th

e

tri

gger

&

outsi

de

th

e

tri

gger

guar

d

ex

ce

ptwh

enfirin

g

th

e

Mark2

3.

B.Double-a

ctionmode(Hammerdown/uncocked)

Provides

theoperatorwithalong,heavy(12.1

lbs.)trigg

erpullforthefirstshotonly.Subsequent

shotswillbefiredinsingle-actionmodeasthe

slidewillautomaticallycockthehammerafter

eachroundisfired.Thedouble-actionmodeof

fireisofte

nthepreferredmodeoffirewhen

safetyduringhandlingandcarryingisofgreater

concernt

hanfirstroundaccuracy.

1.Aimatthetarget.

2.Firethe

weaponbypressingthetriggerstraight

totherearwithgraduallyincreasingpressure.

3.Depressthedecockinglevertolowerthe

hamme

rtoreturntothedouble-action

mode

oncefir

ingiscomplete,orengagethesafety

leverto

remaininthesingleactionmode.


23/48

23

SECTION

IV

-

OPERATION

UNDER

UNUSUAL

CONDITIONS

N

O

T

E

Un

usual

con

di

ti

on

s

ar

e

defin

ed

as

an

y

clim

ati

c

con

di

ti

on

requirin

g

s

peci

al

main

ten

an

ce

of

th

e

pi

stol

.

Perf

orm

th

em

ain

ten

an

ce

outlin

ed

for

th

e

clim

ate

th

at

most

appli

es

to

your

oper

ati

on

al

ar

ea.

Ref

er

to

par

agr

aph

3.9

for

lubri

cati

on

in

str

ucti

on

s.

CA

UTI

ON

If

ex

ten

siv

e

corr

osi

on

is

foun

d

an

d

cl

eanin

g

doesn

ot

solv

e

th

e

pr

obl

em

,

con

tact

th

eHK

Servi

ce

Depar

tm

en

t.

2.11ExtremeCold

A.Whenoperatingpistol

inextremelycold

climates,cleanandlubricatethepistolinsideat

roomtemperatureifpossible.

B.ApplyalightcoatofLA

W(Lubricant,Arctic

Weapons)toallfunctionalparts.

C.Topreventfreezing,keepthepistolcovered

whenmovingfromaw

armtoacoldarea.This

willallowgradualcooling.

D.Alwayskeepthepistoldry.

E.Donot

layahotpistolinsnoworice.

F.Keepa

mmunitiondry;moisturewillcause

malfun

ctions.Donotlubricatethe

ammunition.

G.Alwayskeepsnowoutoftheboreofthebarrel.

Ifsnow

shouldgetintothebore,cleanthebore

before

firingusingaswabandcleaningrod.

2.12Hot,

WetClimates

A.Performmaintenancemorefrequently.Inspect

hidden

surfacesforcorrosion.Ifcorrosionis

found,

cleanandlubricate.

B.Tohelppreventcorrosion,removehandprints

witha

cloth.Dryandlubricatethepistolwith

CLP/LSA(Cleaner,Lubricant,Protectant).

C.Check

ammunitionandmagazinesfrequentlyfor

corrosion.CleanthemagazineusingCLP/LSA

andwipedrywithacloth.Ifnecessary,clean

ammunitionwithadrycloth.

D.Alwayskeepmudoutofthebarrel.Ifmud

should

getintothebore,cleanitbeforefiring

usingaswabandcleaningrod.


24/48

24

2.13Hot,DryClimates

A.Dustandsandwillgetin

topistolandcause

malfunctionsandexcessivewearoncomponent

contactsurfacesduring

firing.Keepthepistol

coveredwhenpossible.

B.Corrosionislesslikelyto

formonmetalpartsin

adryclimate.Therefore

,lightlylubricate

internalworkingsurfacesonlywithCLP/LSA.

Donotlubricateexterna

lpartsofthepistol.

Wipeanyexcesslubrica

ntfromexposed

surfaces.Donotlubrica

teinternalcomponents

ofmagazine.

2.14HeavyRainandWate

rOperations-All

Climates

A.Performmaintenancein

accordancewiththe

appropriateclimaticconditions.

B.Alwaysattempttokeeppistoldry.

C.Alwaystrytodrainanyw

aterfrombarrelpriorto

firing.Drytheborewith

aswabandcleaning

rod.

D.Lightlylubetheboreand

chamber.Generously

lubeinternalandexternalsurfacesofthepistol

withCLP

/LSA.

E.Inextrem

eorprolongedwetorsaltwater

condition

s,coverserialnumberandproofmark

onbarre

landslidewithatemporaryprotective

coating.

Theseareetchedonthroughthe

permane

ntprotectivecoatingonthebarreland

slideand

thereforemaycorrodeunderthese

condition

s.


25/48

25

SECTIONV-MALFUNCTIO

NSANDSTOPPAGES

2.15RemedialAction-RemedialActionisthe

actionperformedtoremed

yanunanticipated

interruptionofthepistolsoperationandplacethe

pistolbackintooperation.

W

A

R

N

I

N

G

Durin

g

rem

edi

al

acti

on

,m

ak

e

cer

tain

th

e

pi

s-

tol

is

poin

ted

in

a

saf

e

dir

ecti

on

at

all

tim

es.

A.Clearthepistol!

B.Attempttolockslide.

C.Removemagazine.

D.Inspectchamber.

E.Insertfreshmagazine

F.Releaseslide.

G.Attempttofirethepistol.

IftheMark23failstofire,returntheweapontothe

HKServiceDepartmentforservice.

W

A

R

N

I

N

G

If

ar

ou

ndi

s

assem

bl

edwi

th

out

pow

der

(a

faul

t

of

the

man

uf

acturin

g

pr

ocess),

th

e

prim

er

al

on

e

h

as

en

ough

pow

er

to

pr

opel

th

e

pr

ojecti

le

in

to

th

e

bor

e.

A

pr

ojectil

e

lodged

in

th

e

bor

e

may

cause

dam

age

to

th

e

barr

el

an

d/

or

th

e

p

istolif

an

oth

err

oun

di

sfir

ed

an

d

coul

d

ca

use

per

son

alin

jur

y.Thi

s

ev

en

ti

s

comm

onl

ycall

ed

a

pop

an

dn

oki

ck

or

squi

bl

oad

an

di

s

ch

ar

acteriz

ed

by

am

uch

reduced

repor

t

an

dli

ttl

e

orn

om

ov

em

en

t

of

th

e

sli

d

e.

An

al

er

t

oper

ator

sh

oul

d

noti

ce

th

e

occurr

e

nce

of

thi

s

ev

en

tin

tim

e

to

av

oi

d

firin

g

t

he

nex

t

roun

d.

SelectionandUseofaHolster-

Selection-Whenselectingacarryingholsterforthe

HKMark23,itisimportanttoconsiderthefollowing

points:

1.Theholstermustnotmakecontactwithoractuate

anyoftheoperatingcontrols.Thisincludesthe

hamme

r,sliderelease,magazinereleaselever,

andmo

stimportantlythesafetyleverandthe


26/48

26

trigger.Thedesignoftheh

olstermustalsonot

actuatethesecontrolswhe

nthepistoliscarriedin,

drawnfrom,orreturnedto

theholster.

2.Theholstershouldnotca

usetheslidetomove

(unlock)whenthepistolisreturnedtotheholster.

3.Accommodationsmustbeprovidedintheholster

foranyaccessoriesthatm

ightbepresentonthe

pistol.

4.Chooseaholsterdesigne

dfortheMark23.

ReturningthePistoltotheH

olster-TheHK

Mark23mustbemadesafe(orcleared)priorto

returningittotheholster.The

pistolisconsideredsafe

toreturnittotheholsterwhen:

1.Allfingersareoffofthetrig

gerandoutofthetrigger

guardand;

2.Thepistolisclearor;

3.Thehammerisinthedeco

cked(down)positionor;

4.Thesafetyleverisengage

dinthesafeposition

whenthehammeriscocke

d.

W

A

R

N

I

N

G

Th

e

pi

stolm

ustn

ev

er

ber

eturn

ed

to

th

e

hol

ster

unl

ess

th

e

abo

ve

pr

ocedur

esh

av

e

been

foll

ow

ed

or

in

jur

y

or

death

coul

d

occur

.


27/48

27

CHAPTER

3

MAINTE

NAN

CE

IN

STR

UCTI

ON

S

SE

CTI

ONI-T

OOL

S

&E

QUIPMENT

N

O

T

E

Th

e

servi

celif

e

an

d

p

erf

orm

an

ce

of

yourHK

Mark2

3i

s

depen

den

t

upon

th

e

corr

ect

han

dlin

g

an

d

pr

oper

car

e

by

th

e

oper

ator

.

3.1OperatorToolsandEquipmentRequired.At

aminimum,youwillrequirethefollowingmaterials

tomaintaintheMark23pistolanditscomponents:

Cleaningrodwithhandle

andeyelet

Longhandlednylonbrush

Bronzebristleborebrush

(.45caliber)

Cottonswabs

Solvent/borecleaner/CLP

Cleaningpatches(.45ca

liber)

Rag

CA

UTI

ON

Use

saf

ety

goggl

eswh

en

usin

g

solv

en

ts

an

d

ex

er

ci

se

car

e

if

usin

g

com

pr

essed

air

.

SECTION

II

-

PREVENTATIVE

MAINTENANCE

(PM)

SERVICE

C

HECKS

&

MAINTENANCE

PROCEDURE

S

3.2Gener

al-ThisPMServicesectionliststhose

requiredch

ecksandservicestobeperformedby

personnelwhooperatetheMark23pistol.This

sectioninc

ludestheservicesrequiredtopreparethe

pistolforoperation,tocheckthepistolduring

operation,

andtoensureproperfunctionafter

maintenance.BeforeperforminganyPMService

procedures,ensurethattheFirearmServiceRecord

hasbeenu

pdatedwiththecorrectroundcountand

anyPMSe

rviceproceduresdocumented.Ifyour

equipment

failstooperate,refertotheTrouble-

shootingTableinSectionIII.

W

A

R

N

I

N

G

Bef

or

e

star

tin

g

anin

specti

on

pr

ocedur

e

CLEARTH

EPI

ST

OL

!In

spect

th

e

ch

am

ber

to

en

sur

e

t

hati

ti

s

em

pty.D

on

otk

eepliv

e

amm

uni

ti

onn

earm

ain

ten

an

ce

/w

ork

ar

eas.


28/48

28

Figure10

RemovingorInstallingtheSlideRelease

CA

UTI

ON

Holdthere

coil/bufferspringassemblyinplace

while

remo

ving

the

slide

from

the

frame.

N

O

T

E

Before

starting

any

PM

Service

procedure

ensure

that

the

Firearm

Service

Record

has

been

updated

with

the

correct

round

count

and

any

PM

Service

per

formed

documented.

3.3Disassembly(Fieldstripping)

A.Pistol

1.Clearthepistol!

2.Depressslidereleaseandallowslidetomove

forward.

3.Ifapplicable,removea

nymountedaccesso-

ries.

4.Usingthelefthand,ret

ractandholdtheslide

totherearapproximate

ly22mmuntilthefront

endofthesliderelease

iscenteredonthe

recessvisibleonthele

ftsideoftheslide(See

Figure10).

5.Withherighthandpushtheslidereleaseinto

therecessontheright

sideoftheframe,lift

andcompletelyremove

theslidereleasefrom

theleftsideofthefram

e.

Recess

Slide

Release


29/48

29

10-RoundC

ivilianMagazine

1.Usingabluntpointedinstrumentdepressthe

locking

insertdetentelocatedinthefloorplate

andholditthere.

2.Placea

portionofeitherhandoverthebaseof

thema

gazinetocontrolthereleaseofthe

magaz

inespringandlockinginsert.

3.Withth

elockingdetentestilldepressed,

squeezethefloorplatelockingtabslocatedon

therightandleftsidesofthemagazine.

4.Graduallyallowthelockinginsertandmagazine

spring

toexpandoutofthemagazinehousing.

5.Remov

ethelockinginsert,magazinespringand

magaz

inefollowerfromthemagazinehousing.

CA

UTI

ON

Bew

ar

e

o

fth

e

sprin

g

ten

si

on

ex

er

ted

by

th

e

magazin

e

sprin

g

whil

e

rem

ovin

g

an

d

in

stalli

ng

th

e

magazin

e

fl

oor

pl

ate.

Keep

th

e

base

of

th

em

agazin

e

poin

tedin

a

saf

e

dir

ecti

on

(aw

ayfr

omf

ace

an

d

eyes)

durin

g

di

sassem

bl

y

an

d

assem

bl

y.

6.Removetheslidewith

barrelandcaptured

recoil/bufferspringassemblyoffoftheframeby

slidingitforward.

7.Removethecapturedrecoil/bufferspring

assemblyfromthebarrelandslidebyliftingup

ontherearoftheguid

erod.Theentire

assemblycannowbe

liftedoutoftheslide.

8.Lifttherearofthebarrelbythelockingblock

andwithdrawitfromtheslide.

B.Magazine

12-RoundLawEnforcemen

tMagazine

1.Usingabluntpointedinstrumentdepressthe

lockingdetentprotrudingthroughthebottomof

themagazinefloorpla

teandholditthere.

2.Placeaportionofeithe

rhandoverthebaseof

themagazinetocontrolthereleaseofthe

magazinespringandlockingplate.

3.Slowlyslidethefloorp

lateforwardoffofthe

magazinehousing.

4.Graduallyallowtheloc

kingplateandmagazine

springtoexpandouto

fthemagazinehousing.

5.Removethelockingplate,magazinespringand

magazinefollowerfromthemagazinehousing.


30/48

30

CA

UTI

O

N

Oper

ator

di

sassem

bl

y

of

th

e

Mark

23

pi

stol

is

now

com

pl

ete.

Onl

y

t

rain

edHK

Servi

ce

Depar

tm

en

t

per

sonn

elm

ay

di

sassem

bl

e

th

e

weapon

fur

th

er

.

3.4Reassembly(Fromfield

strip)

A.Magazine

12-RoundLawEnforcement

Magazine

1.Placethemagazinefollo

werontotheendofthe

magazinespringhaving

theloopattheendof

thewireontheleftsideofthefollower.

2.Insertthefollowerandth

emagazinespringinto

themagazinehousing.

3.Placethelockingplateontotheprotrudingend

ofthemagazinespringsothatthelocking

detentisvisible(seeFig

ure11A).

4.Pushthelockingplatedo

wnintothemagazine

housingagainstthepressureofthemagazine

springandholditthere

.

5.Slidethefloorplateover

thebaseofthe

magazinehousingandlockingplatefromfront

torearmakingsurethat:

a.Thefloorplateengagesthetabslocatedon

theleft

andrightsidesofthemagazine

housing.

b.Thefloorplateisfullyseatedonthemagazine

housing.

c.Theloc

kingdetentfitswithintheholeprovided

inthefloorplate.

d.Checkthemagazineforproperassemblyby

insuringthatthefollowerslidesupanddown

freelyw

ithinthemagazinehousingandwith

springtension.Alsocheckthatthemagazine

followerriseswithinthehousingtobenearly

flushagainstthebottomofthemagazinelips.

Figure11A

AssemblyofMagazineFollower&Spring

(12-RoundLawEnforcementMagazine)

m

agazinehousing

floorplate

magazine

follower

lockingplate

magazinespring


31/48

31

Figure11B

10-RoundCivilianMagazine

(Disasse

mbled)

10-RoundCivilianMagazin

e(seeFigure11B)

1.Placethemagazinefollowerontothe

magazinespringwith

theendofthespring

positionedontheleftofthefollower.

2.Insertthefolloweran

dmagazinespringinto

themagazinehousin

g.

3.Placethelockinginsert(on10-round

magazines)ontothe

protrudingendofthe

magazinespringsothattheroundedcorners

facetowardsthefrontofthemagazine.

4.Push

thelockingplatedownintothemagazine

housingagainstthepressureofthemagazine

springandholditthere.

5.Push

thefloorplateupontothebaseofthe

maga

zinehousinguntilthelockingtabs

engageinthesidesofthehousing.Checkto

seeifthelockingtabsonthefloorplateare

securelylockedintothehousingandthe

lockin

gdetenteonthelockingplatefitswithin

theholeinthefloorplate.

6.Chec

kthemagazineforproperassemblyby

insuringthatthefollowerslidesupanddown

freely

withinthemagazinehousingandwith

springtension.Alsocheckthatthemagazine

follow

erriseswithinthemagazinehousingto

bene

arlyflushagainstthebottomofthe

maga

zinelips.

B.Pistol

1.Insertthemuzzleofthebarrelthroughthe

large

holelocatedinthefrontoftheslide.

2.Drop

thebarreldownintotheslideandpushit

forwa

rduntiltheO-ringengagestheslide,the

lockin

gblockfitswithintheejectionport,and

theangledlockingsurfaceofthelockingblock

arevisiblealongthebottomoftheslide.The

magazinehousing

floorplate

magazine

follower

lockinginsert

magazinespring


32/48

32

O-ringwillnowholdthemuzzletightinthe

frontoftheslide.

3.Installthecapturedrec

oil/bufferspring

assemblyintotheslide

sothatthefrontofthe

recoilspringguiderod

engagesinthesmaller

holelocatedinthefron

toftheslide.

4.Aligntheopposingang

ledlockingsurfacesof

therecoilspringguide

rodwiththoselocated

onthebottomoftheba

rrellockingblock.

5.Pushtherearoftherecoil/bufferspring

assemblyforwardenou

ghsothattherecoil

springretainercanbeengagedontheshelf

providedonthefrontofthebarrellocking

block(seeFigure12).

6.Holdtheslideintherig

hthandwiththethumb

holdingtherearendof

therecoil/bufferspring

assemblyinplaceontheslide(seeFigure13).

7.Holdtheframeinthele

fthand.Positionthe

rearoftheslideabove

thefrontedgeofthe

frame.

8.Drawtheslidebackon

totheframesothatthe

railsofthelockinginse

rtandguidingpartslide

withinthegroovesinth

eslide.

9.Retracttheslidetothe

pointwheretherecess

intheleftsideoftheslideiscenteredonthe

holewheretheaxleof

theslidereleasewillgo.

10.Holdtheslideinthispositionandinsertthe

slidere

leasefromthelefttorightintothe

frameu

ntilitisflushwiththesideoftheframe

andloc

ksinplace.

Figure12

ProperPositionfortheCapturedRecoil/

BufferSpring

AssemblyontheBarrelLockingBlock

lockingblock

barrel

threads

O-ring

shelf

bufferspring

recoilspring

guiderod

recoilspring

C-clip

recoilspring

retainer


33/48

33

Figure13

CorrectPos

itionforHoldingSlide

forReassembly

N

O

T

E

Oper

ator

reassem

bl

y

o

fth

e

Mark

23

pi

stol

is

now

com

pl

ete,

butn

o

tfini

sh

edwi

th

out

a

saf

ety/f

un

cti

on

ch

eck

.

3.5Safety/FunctionCheck

A.Asafety/functioncheckshouldbeperformed

anytimethepistolisre

assembled.Thisquick

check

indicateswhetherornotthepistolwas

proper

lyassembledandwithallthecompo-

nents.

Aproperlyexecutedsafety/function

check

canalsorevealmanyofthemoreobvious

malfun

ctionsthatcouldoccurbetweenthe

interac

tivecomponentsofthepistol.

B.Alwaysclearthepistolbeforeperforminga

safety/functioncheck!Dontassumethe

pistol

isclear!

1.Clearthepistol!

2.Actuatetheslideandtheoperatingcontrolsto

insurethat:

a.Magazineandcatch-themagazineis

he

ldsecurelyinplacebythemagazine

ca

tchandthatitdropsfreeoftheframe

whenthecatchisdepressed.

b.Slide-theslidemovesfreelyandwithout

bindingontheframe(withandwithouta

magazineinstalled).

c.Barrel-thebarrellockingblockdoeslock

fullyintobatterywithintheejectionportof

theslideastheslideisclosed.

d.SlideRelease-

1)

Theslidereleasedoesholdtheslide

openwhenretractedwhile:

frame

slide

thumbholdingrecoil/bufferspring

assemblyonthelockingblock


34/48

34

a)anemptymaga

zineisinplace.

b)theslidereleas

eisengaged(pressed

upwards).

2)Thesliderelease

doespermittheslideto

snapforwardwhe

n:

a)theslidereleas

eisdepressed.

b)theslideisretractedwithouta

magazineinstalled.

3)Thesliderelease

doesreboundwith

springpressure.

3.Performthefollowings

afetychecks:

a.SafetyLeverTest.

1)Withthepistolunloadedandhammer

down(uncocked)

attempttopressthe

safetyleverupwardintothesafeposition.

Thesafetylevers

houldnotengage.Ifthe

safetyleverengages,returnthepistolto

theHKServiceDepartmentforservice.

2)Withthepistolunloaded,thehammer

cocked,movethe

safetyleverseveral

timesfromthesa

fetofireposition.If

thesafetyleverdoesnothaveapro-

no

uncedstopwhenmovedfromsafeto

firepositionandback,returnthepistol

to

theHKServiceDepartmentforservice.

3)W

iththepistolunloaded,cockthe

ha

mmerandpressthesafetylever

up

wardintothesafeposition.Graspthe

pistolintheshootingpositionand

sq

ueezethetriggerthreeorfourtimes.If

thehammerfalls,returnthepistoltothe


b.Dec

ockingLeverTest.

1)W

iththepistolunloaded,cockthehammer

an

ddepressthedecockinglever.Ifthe

ha

mmerdoesnotfallorthedecockinglever

do

esnotrebound(upwardintoitsnormal

po

sition)withspringpressure,returnthe

pistoltotheHKServiceDepartmentfor

se

rvice.

2)W

iththepistolunloaded,cockthe

ha

mmerandpressthesafetylever

up

wardintothesafeposition.Attemptto

de

pressthedecockingleverthreeorfour


35/48

35

times.Iftheham

merfalls,returnthe

pistoltotheHK

ServiceDepartmentfor

service.

c.Decocked(hamm

erdown)Test.

NOT

E

On

the

Mark

23

pistol

when

decocked

(hammer

down),

the

sear

is

eng

aged

with

the

hammer

at

a

rebounded

stop

posi

tion

not

touching

the

rearofthefiringpin.

1)With

thepis

tol

un

loaded,squeez

ethe

trigger

allowin

gthehamm

er

tocyclein

the

double

actionm

o

de.After

theh

amm

er

dro

ps,re

tain

pre

ssure

on

thetrigger.With

then

on-firin

gh

an

dapply

pre

ssurewith

your

finger

tipson

the

rear

of

theh

amm

er.Th

e

hamm

er

sh

ouldm

oveforw

ard

tow

ard

the

firingpin.R

ele

as

epre

ssure

on

thetrigger

while

stillre

tainin

gpre

ssurewithfin

gers

on

hamm

er.R

ele

asepressure

onh

amm

er.If

theh

amm

erfails

tosprin

gbackin

tothestop

position

,re

turn

th

epis

tol

totheHK

Servic

e

Departm

en

tfor

s

ervic

e.

2)Withthepistolunloaded,hammer

uncocked,triggerforward,applypressure

tothehammerwithyourfingertips.Ifthe

hammermovesforwardtothefiringpin,

returnthepistoltotheHKService

Departmentforservice.

d.DisconnectorandTriggerTest.

1)

Withthepistolunloaded,cockthe

hammer,pushthesliderearward

approximately3/16inches(2mm)and

holdinthatpositionwhilesqueezingthe

trigger.Ifthehammerfalls,returnthe

pistoltotheHKServiceDepartmentfor

service.

2)

Withthepistolunloaded,pulltheslide

rearwarduntiltheslidestopwillengage.

Squeezethetriggerandreleasetheslide

forwardsimultaneously.Ifthehammer

falls,returnthepistoltotheHKService

Departmentforservice.


36/48

36

3)Withthepistolunloaded,pulltheslide

rearwardandengagetheslide.Squeeze

thetriggerandreleasetheslideforward

simultaneously.R

eleasepressureonthe

trigger.Ifthetrigg

erdoesnotreturntoits

normalposition,returnthepistoltothe


Squeezethetriggerandthehammer

shouldfall.Ifthe

hammerdoesnotfall,

returnthepistolto

theHKService

Departmentforse

rvice.

4)Withthepistolunloadedandthetrigger

forward,applythu

mbpressuretothe

cockedhammer.Ifthehammerlowers

solelyasaresultofthumbpressure,

returnthepistolto

theHKService

Departmentforse

rvice.

3.6FunctionFiring

Ifanycorrectiveactionwasaccomplished,thepistol

shallbefunctionfiredafullm

agazinepriortobeing

cleanedandreturnedtoserv

iceuse.

3.7Cleaning-performedaftereachfiring,or

everytwelve(12)months,orafteranyexposure

toextremee

nvironmentalconditionssuchas

salt,fog,sand,dust,mud,water,etc.

A.Normal

Cleaning-

1.Clearthepistol!

2.Disassemblethepistolintothemajorassem-

blygroups.

a.Slid

e-

1)Scruballinternalsurfacesoftheslide

us

ingthenylonbrushmoistenedwith

so

lvent.

2)Removeallloosefoulingfromallsurfaces

of

theslideusingaragandcottonswabs.

b.Rec

oil/bufferspringassembly-remove

allv

isiblefoulingusingsolvent,anylon

brus

h,arag,andcottonswabs.

c.Barrelwithlockingblock-

1)Moistenthebronzeborebrushwith

so

lventandscrubtheborefromchamber

to

muzzleatleastsixpasses,backand

forth.(Note:Repeatsteps1and2untila

cleaningpatchcanbepushedthroughthe

bo

reandremainsclean.)


37/48

37

NOTE

AllpartsoftheHKMark23canbeimmersedin

anyclean

ingsolventthatitissafetoputyour

handsinto.Gasolineandothermotorfuelsare

notautho

rizedcleaningsolvents.Avoidclean-

ingthefra

meinanultrasoniccleanerasthiscan

removeth

ecoloredsafeandfiredots.

3.8Insp

ection

Duringand

aftercleaningtheoperatorshould

inspectthe

pistolanditscomponentsforany

irregularitie

sthatmaycauseproblemsduringits

operation.

Ifanypotentialdeficienciesarenoted,

theyshouldbecorrectedimmediatelyand/or

broughtto

theattentionoftheHKServiceDepart-

mentforse

rvice.

A.VisuallyInspectthePistolandMagazinefor:

1.Damagedormissingparts

2.Improperassemblyorfunction

3.Abse

nceoffreemovement,whereapplicable

4.Abse

nceofspringtension,whereapplicable

2)Removetheloo

sefoulingusingcleaning

patches.

3)Scruboutsidesurfacesofbarreland

lockingblockwiththenylonbrush

moistenedwithsolvent.

4)Scrubthethread

softhebarrelandO-ring

withthenylonbr

ushmoistenedwith

solvent.

5)Removeallloos

efoulingusingaragand

cottonswabs.

d.Frame-

1)Scruballinternalsurfaceswherecarbon

foulingisvisible

usingthenylonbrush

moistenedwithsolvent.Concentrateon

theareanormallycoveredbytheslide.

2)Usingtheragan

dcottonswabs,removeall

loosefoulingfrom

allareasoftheframe.

e.Magazine-

1)Themagazineisdisassembledfor

cleaning.

2)Scrubthetopofthemagazine,concen-

tratingonthefo

llowerandfeedlips,using

thenylonbrush

moistenedwithsolvent.

3)Usingtheragandcottonswabs,remove

allloosefouling

fromallsurfacesofthe

magazine.


38/48

38

5.Unaccustomedlooseness

6.Partsexhibitingsignso

fcracks,burrs,dents,

orobvioussignsofdam

ageorstress

7.Presenceofstopsorta

ctileclicksincontrols,

whereapplicable

8.Generaloverallcleanliness

9.Presenceofproperlub

rication

10.Presenceofcorrosion

ordegradationof

surfacefinish

11.Rubberhammerspur

forcracksorchips

CA

UTI

O

N

If

th

e

rubber

hamm

er

spu

ri

s

badl

y

cr

ack

ed

or

chi

pped,

dr

op

saf

ety

coul

dbe

degr

aded.

Pi

stol

sh

oul

d

be

return

ed

to

HK

Servi

ce

Depar

tm

en

t

tor

epl

aceh

amm

er

.

3.9Lubrication

AllmetalsurfacesoftheMark23pistolhavea

specialsurfacetreatmenttha

tresistsalltypesof

corrosionincludingcorrosion

resultingfrom

exposuretosaltwater.However,thissurface

treatmentdoesnotreducefr

ictionbetweenparts,

therefore,lubricantmustbeappliedtothepistol.

Anytypeofh

igh-quality,mediumweightlubricant

(oilorgrease

)specificallydesignedforuseon

firearms,suc

hasBreak-Free(C.L.P.),willwork

wellontheM

ark23pistol.

Donotuselu

bricantsthatboastoftheirabilityto

penetrateme

talasthesesubstancesmaydeaden

primers.

A.Whereandhowmuch?

NoLube

-(surfaceisdryandnotslipperytothe

touch)

Plastic

components

LightLu

be-(fingerrunacrosssurfaceyields

littleorn

olube)

Bore,c

hamber,andexteriorofbarrel

Allmetalparts

Allinternalpartsinslideandframe

Magazinehousingandspring

Recoil/bufferspringassembly

Sights

O-ring


39/48

39

Medium

Lube-(finge

rrunacrosssurface

yieldssomelubebutlubedoesnotrundown

surfacewhenheldina

verticalposition)

Barrellockingblock

Sliderails

Alloperatingcontrols

Lockinginsertandguidingpart

Extractor

HeavyLube-(Luberunsdownsurfacewhen

heldinaverticalposition)

N

O

T

E

Noh

eav

yl

ubei

sr

eq

uir

ed

on

th

eM

ark2

3

pi

stol

.

Reapplylubricationperiodicallyduringfiringasit

burnsofffromtheheat.Applylubricantusinga

shavingbrush,cottonswabs,patches,orrag.A

spraybottlealsoworkswe

llusingcompressedairto

circulatethelubricantintoallpartsandtoremove

theexcess.


40/48

40

N

O

T

E

Allwin

dage

an

d

el

ev

ati

on

adjustm

en

ts

ar

e

made

usin

g

onl

y

th

e

rear

si

gh

t.

1.Windageadjustments-toadjustthe

horizon

tal(leftandright)impactofthe

projectilefollowthesestepsbelow:

a.ClearthePistol!

b.Notetheindexmarkontherearsightand

itsrelationshiptotheindexmarkonthe

slide

.

c.Loosentherearsightretainingscrewusing

asc

rewdriver.

d.With

asmallhammerandbrassorsoft

metaldriftpunch,driftthesighttothe:

1)LE

FTtomovethepointofimpacttothe

left.

2)RIGHTtomovethepointofimpacttothe

rig

ht.

3)Th

eamountofmovementwilldependon

theindividualshooterandtheammunition

us

ed.

SECTIONIII-ADJUSTMENT

OFSIGHTS

Description-

1.Themechanicalsights

suppliedwiththeMark

23pistolarecomprised

ofafixedfrontsight

postcombinedwitharearsightwithu-shaped

notchofaconventiona

lconfiguration.Both

frontandrearsightsar

eheldinplaceonthe

slidewithinastandard

dovetailgroove.The

rearsightisalsosecuredwitharetaining

screwandisadjustableforwindageand

elevation.

2.Bothfrontandrearsightscontainwhitecircles

(orcylindricaltritiumca

psules)thatappearas

dotstotheoperator.Onedotispositionedon

eithersideoftherears

ightapertureandinthe

centerofthefrontsightpost.Whenthesights

areproperlyalignedve

rticallyandhorizontally,

soarethesedots.Thus,thethreedotscanbe

usedforrapidacquisitionofthesightsand

propersightalignment.

Adjustment-thebattlesig

htzerooftheMark23

pistoliseasilyadjustedbymovingorreplacing

therearsight.


41/48

41

N

O

T

E

Alw

ays

strik

e

th

e

si

gh

ton

th

e

si

gh

t

base,

not

on

th

e

si

gh

t

bl

ades.

e.Retightentherearsightretainingscrew.

f.Confirmyourbattlesightzerobyfiringthe

pistolagain.

2.ElevationAdjustments-Toadjustthevertical

(upanddown)impact

oftheprojectilefollow

thesestepsbelow:

a.Clearthepistol!

b.Determinetheam

ountofverticalchange,in

inches,thatisreq

uiredat25meters.Note

theindexmarkon

therearsightandits

relationshiptothe

indexmarkontheslide.

c.Loosenandremovetherearsightretaining

screwusingascrewdriver.

d.Withasmallhammerandbrassorsoft

metaldriftpunch,

driftthesightcompletely

outofeithersideofthedovetailgroove.

e.Notethemarking

onthebottomoftherear

sight.(Thestanda

rdsightisunmarked),

f.Selectahigheror

lowerrearsightfrom

Figure14.

g.Usingthebrassorsoftmetalpunchand

ha

mmer,installthenewsightintothe

do

vetailgroove.

h.Aligntheindexmarksoftherearsightand

slideasnotedinstepbabove.

i.Re

installandtightentherearsightretaining

sc

rew.

j.Co

nfirmyourbattlesightzerobyfiringthe

pistolagain.

3.RearS

ightSelection-Therearsightis

markedwith-6,-4,-2,unmarked,+2,+4,or+6.

Thism

arkingrepresentstheamountofvertical

change,ininches,thatoccurswhenthatsightis

exchangedwiththesightoriginallyinstalledin

thepis

tol.

1)

ToRAISEthepointofimpact,installa

higherrearsight.

2)

ToLOWERthepointofimpact,installa

lowersight.

Example:Thepistolisshooting4incheshighat

25meters.Wewantthepistoltoshootdead-on

(pointofaim,pointofimpact).Therearsight


42/48

42

removedfromthepistol

isunmarked(standard).

1)Figure25showsthatthe

rearsightmarked-4

wouldlowerthepointof

impacttwoincrements,

oratotalof4inches,fro

mthestandard

unmarkedrearsightrem

ovedfromthepistol.

2)The-4sightwouldbethecorrectoneto

install.Obtainthe

exchangeablerear

sightfromthekit

deliveredwiththe

pistols.

RaisePointofImpact(Inches)

Lower Point of Impact (Inches)

-6

+6

+4

-4

-2

NoMarking

(Standard)

+2

Figure1

4

C.Zeroing

1.Thebattlesightzeroof

theMark23pistolisset

bythemanufacturerus

ing+P185grainJHP

ammunition.Thepisto

lisfiredfromamachine

restatatargetposition

ed25metersfromthe

pistol.

Thepistoliszeroedpointofaim,point

ofimpa

ct(POA/POI).Thismeanstheimpact

ofthep

rojectileontargetwillcoincidewiththe

pointofaimofthesightsat25meters.

2.Eachin

dividualoperatoroftheMark23pistol

canbattlesightzerotheirpistoltotheirunique

shootin

gstylebyadjustingthesightsin

accordancewiththeproceduresinsubpara-

graphs

1-3above.


43/48

43

SECTIONIV-TROUBLESH

OOTINGPROCEDURES

3.11OperatorTroublesho

otingProcedures

PROBLEM

SYMPTOM/CAUSE

REMEDY

1.Rounddoesnotfeed

Fouledmagazineorpistol

C

leanandlubepistolandmagazine

Improperlyassembled

A

ssemblecorrectly

Incorrectloadingprocedureused

L

oadpistolinaccordancewithinstructions

inoperatorsmanual

Unserviceablemagazine

R

eplacemagazine

2.Rounddoesnotchamber

Dirtyordamagedmagazine

C

leanandlubeorreplacemagazine

Obstructionpresentinchamber

R

emoveobstruction,cleanandlube

and/orbore

c

hamber/bore

Bentordamagedrecoilspring,

R

eturnpistoltotheHKServiceDepart-

bufferspring,orguiderod.Buffer

m

entforservice

springretainerrollpindrift.*

*N

OTE

Alw

ays

in

spect

th

e

buff

er

sprin

g

retain

er

roll

pin

for

drif

t.

I

fn

ot

firml

y

seated

an

d

cen

ter

ed

in

th

e

gui

de

rod,

return

to

th

e

HK

Servi

ce

Depar

tm

en

t

for

repl

acem

en

t.


44/48

44

PROBLEM

SYMPTOM/CAUSE

REMEDY

3.Slidedoesnotlock

Fouledbarrellockingblockorslide

Cle

anandlubebarrellockingblockand

fullyforward

slid

e

Drycomponentpartsorpistol

Lubricatepistolinaccordancewith

ins

tructionsinoperatorsmanual

Damagedorburredslide,barrel

Re

turnpistoltotheHKServiceDepart-

lockingblock,orrecoil/buffer

me

ntforservice

springassembly.Bufferspring

retainerrollpindrift.*

4.Pistoldoesnotfire

Faultyammunition

Re

placeammunition

Littleornosignoffiringpinstrike

Re


(indent)onprimer

me

ntforservice

5.Slidedoesnotunlock

Faultyammunition,determinedby

Ch

eckboreforobstructionandreplace

shortrecoil

am

munition

Checkforbrokenordamagedslide,

Re


barrellockingblockorrecoil/buffer

me

ntforservice

springassembly.Bufferspring

retainerrollpindrift.*


45/48

45

PROBLEM

SYMPTOM/CAUSE

REMEDY

6.Cartridgedoesnotextract

Fouledchamber

C

leanandlube

Rupturedcartridgecaseinchamber

R

emoverupturedcase,cleanandlube

c

hamber

Fouledorcorrodedammunition

R

eplaceammunition

Pittedordamagedchamber

R


m

entforservice

Brokenordamagedextractor

R


orextractorspring

m

entforservice

7.Operatingcontrolsdonot

Damagedorimproperlyassembled

R


functionasdescribed

componentparts

m

entforservice

inoperatorsmanual

8.Accuracydegradation

DamagedormissingO-ring

R

eplaceO-ring


46/48

46

PositionNo.

ItemDescription

PartNo.

1

extractor

215707

2

extractorspring

215708

3

rearsightretainingscrew

215711

4

rearsight,6.3mmstandard(unmarked)

215770

rearsight,5.5mm(-4)*

215767

rearsight,5.9mm(-2)*

215768

rearsight,6.7mm(+2)*

215771


215774


215783

5

frontsight

215721

6

firingpin

215705

7

firingpinspring

215706

8

firingpinblock

215709

9

firingpinblockspring

215710

10

firingpinretainingpin

986432

11

extractorpin

986432

12

slide

215667

13

barrel

215671

14

O-ring

986429

15

recoilspringguiderod

215724

16

recoilspringretainer

215725

17

bufferspring

215726

18

dualrollpin(bufferspringretainer)

986433

19

bufferspringretainer

215727

20

springring

929191

21

washer

215728

22

recoilspring

215729

23

triggerbar,complete

215760

24

triggerbarspring

215734

25

c-clip(decocker)

927062

26

decockingspring

214743

27

decocker

215742

28

rollpin(ejector)

986431

29

ejector

215752

30

sear

215748

31

searspring

215749

32

searactuator

215750

33

disconnector

215751

34

searaxle

215753

35

rollpin

(rightsafetylever)

986430

36

rightsafetylever

215744

37

searblock

215754

38

decock

inglockout

215745

39

hammeraxle

215738

40

hammer,complete

215772

41

hammerreboundspring

215739

42

hammerstrut

215740

43

hammerstrutspring

215741

44

insert

215731

45

locking

bolt

215732

46

frame

215976

47

safety

detent

215746

48

safety

detentspring

215747

49

leftsafetylever

215769

50

decock

inglever

215766

51

magaz

inereleasepin

986432

52

magaz

inereleasespring

215737

53

magaz

inerelease

215775

54

slidereleasespring

215733

55

trigger

215735

56

trigger

pin

215736

57

slidereleaselever,complete

215763

58

magaz

inehousing(12-rdmagazine)

215778

58A

magaz

inehousing(10-rdmagazine)*

215672

59

followe

r(10&12-rdmagazine)

215779

60

locking

plate(12-rdmagazine)

215781

60A

locking

plate(10-rdmagazine)*

214853

61

floorplate(12-rdmagazine)

215780

61A

floorplate(10-rdmagazine)*

215673

62

magaz

inespring(12-rdmagazine)

215782

62A

magaz

inespring(10-rdmagazine)*

214821

63

locking

insert(moldedintoframe)

64

trigger

guardinsert(moldedintoframe)

65

guidingpart(moldedintoframe)

magaz

ine(12-rdwithLEmarkings),complete*

215668

magaz

ine(10-rd),complete*

215670

*notpictured

PositionNo.

Item

Description

PartNo.

3.12

PartsListingforMark23Pisto

l


47/48

47

Figure

15

Exploded

Dia

gram

HK

Mark

23

Pistol

3

5

4

2

1

6

7

8

9

11

10

19

18

17

16

15

14

13 12

20

21

22

232

4

25

26

27

32

28

35 3

433

3130

29

40

36

37

38

39

48

47

46

4544

43

42

41

49

50

51

52

53

63

54

55

56

57

58

59

62

60

61

64

65


48/48

48

CHAPTER

4-

A

MMUNITI

ON

TheMark23pistolwasdesignedtooperatebest

usingtwotypesof.45ACPc

aliberammunition.

Theyare:

A.M1911230grainBall

B.CommerciallyManufactu

red185grain+P

JacketedHollowPoint(JHP)

WARNIN

G

Theuseofincorrectamm

unitioninthepistol

couldresultindamagetothepistoland/or

injurytotheoperatororbystanders

DONOTUSE

Reloaded,remanufactured,ormilitarysurplus

(foreignoroutdated)am

munition

Ammunitionloadedinalu

minumcartridgecases

Cracked,split,dirtyorco

rrodedcases

Ammunitionassembledwithcorrosiveprimer

and/orpropellent

Ammunitionassembledwithprojectiledamaged

orpushedintocartridge

casepastcrimp

Ammunitionexposedtooil,grease,water,or

directsunlight.Remove

contaminantsif

possible

beforeuseandcooldownammunition

exposed

todirectsunlightorheat.(Exposureto

sources

ofheatcouldraisethechamber

pressure

ofthecartridgeabovesafelimits).

WARNING

Heckler&K

ochspecificallydisclaimsanyre-

sponsibilitiesforanydamageorinjurythat

shouldoccurbecauseof,orasaresultof,the

useoffaulty,remanufactured,orreloaded

(handload

ed)ammunition,orofcartridges

otherthanthoseforwhichthepistolwasorigi-

nallychamberedfor.N

OTE

Ifafterreviewingthismanualyoustillhave

questions,

pleasecontactyourHKdealeror

telephone

the

Heckler&

Koch

Customer

ServiceDepartment.Pleaseaddress

any

suggested

changes

or

improvements

concerningthismanualto

HKsCreative

ServicesDepartment.

Mark 23 Manual

Documents

Transcript of Mark 23 Manual