MK 19 40mm Machine Gun

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MK 19 40mm Machine Gun MOD 3
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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.
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GROUND MOUNTED
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VEHICLE MOUNTED
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MOUNT PARTS
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MOUNT PARTS (cont)
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MOUNT PARTS (cont)
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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
rpm / Rapid 60 rpm / Sustained 40 rpm
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AMMUNITIONS
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MAJOR PARTS
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CLEARING
FIRING SITUATION 1) Move Safety switch to
SAFE 2) Open Top Cover assembly 3) Take
ammunition from Feed Tray 4) Remove rounds from
chamber 5) Charge weapon 6) Inspect chamber 7)
Place Safety switch to FIRE 8) Release bolt
forward 9) Place Safety switch to SAFE
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CLEARING (cont)
NONFIRING SITUATION 1) Place Safety switch to
SAFE 2) Open Top cover assembly 3) Lower one
charging handle 4) Pull slightly rearward to
clear 5) Ride bolt forward 6) Return handle to
forward position
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DISASSEMBLY
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 assembly 10) Remove the
round-positioning block 11) Remove charger
assemblies from both sides
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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 assembly 10) Replace the secondary drive
lever
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LOADING
1) Insert first round first (female link
first) 2) Push round across secondary feed
pawl 3) Charge weapon and lock handles forward 4)
Place safety switch on FIRE and press
trigger 5) Lock bolt to the rear 6) Ensure safety
switch is on SAFE 7) Lock charging handles
forward 8) Ready to Fire
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MALFUNCTIONS 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 weapon 2) Inspect weapon and
ammunition Corrective Action Use Table 2-1 to
correct problem
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