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FN® M3M (GAU-21
AS9100C/EN9100:2009 certified. Contract awarded by U.S. Navy. For military sales only.
Primary Features
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
Receiver
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
Mount
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
Feed System
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
FULL FN® M3M (GAU-21) SPECS: PAGE 130 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)
