FN® M3M (GAU-21) The Next Generation in .50-Caliber Machine Guns.
MILITARY WEAPONS SYSTEMS
AS9100C/EN9100:2009 certified. Contract awarded by U.S. Navy. For military sales only.
Primary Features
Mount
Open-bolt operation 1,025 +/- 75 RPM cyclic rate of fire The GAU-21 Machine Gun is a recoil-operated air cooled automatic weapon firing the .50 Caliber ammunition from the open bolt position Operating elevation range +/- 70 degrees
Provides optimal field of fire with aircraft’s centerline for wider target coverage dedicated, mission tailored mounts for air, land & sea platforms Provides -70 degrees maximum depression angle for wider target coverage
Receiver
NATO standard belt-fed disintegrating link for added reliability Flexible ammunition feed chute system reduces misfeeds Accepts ammunition boxes from 100 to 600 rounds for greater mission versatility Left- or right-side ammunition feeding without extra components
Solid steel frame for durability Open-bolt firing system (no cook-off risk)
Barrel Cold hammer-forged steel; 10,000-round life Enhanced flash hider offers reduced firing signature to increase compatibility with current night vision equipment Perforated barrel jacket for improved cooling and longer life
Feed System
FN® SMARTCORE ON FN® M3M Caliber: .50 (12.7x99mm)
• Operation: Short recoil • Effective Range: 2,500m • Maximum Range: 6,500m • Barrel Length: 36" • Overall Length: 64.8" • Height: 7.6" • Weight: 81.6 lb. (empty)
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FULL FN® M3M (GAU-21) SPECS: PAGE 130 FNAMERICA.COM | 79
