MK 19 40mm Machine GunMK 19 40mm Machine GunMOD 3MOD 3

DESCRIPTION:DESCRIPTION:

The MK19 40mm Machine gun, MOD 3 is a Self-Powered, air cooled, fully automatic weapon. It uses linked ammunition and fires from the open bolt mode using a modified blow-back type mechanism. The weapon is designed to fire 40mm high velocity series grenade rounds and can be either ground or vehicle mounted.

GROUND MOUNTEDGROUND MOUNTED

VEHICLE MOUNTEDVEHICLE MOUNTED

MOUNT PARTSMOUNT PARTS

MOUNT PARTSMOUNT PARTS (cont)

MOUNT PARTSMOUNT PARTS (cont)

CHARACTERISTICS:CHARACTERISTICS:

Length: 43.1 inches (109.47 centimeters)Weight: 72.5 lbs.Muzzle Velocity: 790 fps (240.69 mps)Max. Range: 2200 m (Suppressive Fire)Max. Eff. Range: 1500 m (Point Targets)Rates of Fire:Cyclic: 325-375 rpmCyclic: 325-375 rpm / / Rapid: 60 rpmRapid: 60 rpm / / Sustained: 40 Sustained: 40 rpmrpm

AMMUNITIONSAMMUNITIONS

MAJOR PARTSMAJOR PARTS

CLEARINGCLEARING

FIRING SITUATION:1) Move Safety switch to “SAFE”2) Open Top Cover assembly3) Take ammunition from Feed Tray4) Remove rounds from chamber5) Charge weapon6) Inspect chamber7) Place Safety switch to “FIRE”8) Release bolt forward9) Place Safety switch to “SAFE”

CLEARINGCLEARING (cont)

NONFIRING SITUATION:1) Place Safety switch to “SAFE”2) Open Top cover assembly3) Lower one charging handle4) Pull slightly rearward to clear5) Ride bolt forward6) Return handle to forward position

DISASSEMBLYDISASSEMBLY

1) Clear weapon 2) Remove secondary drive lever 3) Remove top cover assembly 4) Remove feed slide assembly and feed tray 5) Remove bolt and backplate assembly 6) Remove primary drive lever and vertical cam 7) Remove sear assembly 8) Remove alignment guide 9) Remove the ogive plunger assembly10) Remove the round-positioning block11) Remove charger assemblies from both sides

ASSEMBLY

1) Replace charger assemblies 2) Replace the round-positioning block 3) Replace the ogive plunger 4) Replace the alignment guide 5) Replace the primary drive lever and vertical cam 6) Attach the sear assembly 7) Insert the bolt and backplate assembly 8) Place feed tray assembly on the receiver 9) Attach the top cover assembly10) Replace the secondary drive lever

LOADINGLOADING

1) Insert first round first (female link first)2) Push round across secondary feed pawl3) Charge weapon and lock handles forward4) Place safety switch on “FIRE” and press trigger5) Lock bolt to the rear6) Ensure safety switch is on “SAFE”7) Lock charging handles forward8) Ready to Fire

MALFUNCTIONS & CORRECTIONSMALFUNCTIONS & CORRECTIONS

Sluggish Gun: Excessive friction from dirt, worn parts

Runaway Gun: Worn parts, short recoil of bolt assembly

Immediate Action: Recharge and attempt to fire

Remedial Action: 1) Unload and clear weapon2) Inspect weapon and ammunition

Corrective Action: Use Table 2-1 to correct problem