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M2 .50 Caliber Machine Gun

The Browning M2 .50 caliber machine gun is an automatic, belt-fed, recoil operated, air-cooled, crew-operated machine gun. The system is highly effective against light armored vehicles, low- and slow-flying aircraft, boats and enemy personnel. The M2 is crew transportable with limited amounts of ammunition over short distances. The gun is capable of being modified to fire in single-shot mode, as well as automatic fire. It may be mounted on ground mounts and vehicles as an anti-personnel and anti-aircraft weapon. By repositioning some of the component parts, ammunition may be fed from either the left or right side. A disintegrating metallic link belt is used to feed the ammunition into the weapon.

M2A1 .50 Caliber Machine Gun

The M2A1 is the upgraded version of the original M2 heavy machine gun. It includes new modern features and design improvements that make it easier and safer to use including a quick change barrel, fixed headspace and timing. The upgraded weapon also has a reduced signature as a result of its improved flash hider, which reduces muzzle flash by 95 percent. This enhances the Soldier's ability to use the weapon with night vision devices by limiting "white-out" conditions caused by the brilliance of weapon firing. A quicker barrel change also reduces the amount of time soldiers are exposed to enemy fire and shortens the amount of time the weapon is out of operation.
M2A1 .50 Caliber Machine Gun

Characteristics

Dimensions
Length: 172.1 centimeters 67.75 inches
Width: 22.86 centimeters 9 inches
Bore diameter: 12.7 millimeters .50 inches
Weight
Weight (complete gun): 38.1 kilograms 84 pounds
Barrel weight: 10.89 kilograms 24 pounds
Features
Rate of fire (cyclic): 450-600 rounds per minute
Maximum range: 6 800 meters 22 310 feet
Effective range: 1 830 meters 6 004 feet
Muzzle velocity (firing M33 Ball): 887 meters per second 2 910 feet per second

M2HB .50 Caliber Machine Gun

Characteristics

Dimensions
Length: 156 centimeters 61.42 inches
Bore diameter: 12.7 millimeters .50 inches
Weight
Weight (gun): 38.1 kilograms 84 pounds
Weight (M3 tripod): 19.96 kilograms 44 pounds
Features
Rate of fire (cyclic): 550 rounds per minute
Maximum range: 6 800 meters 22 310 feet
Effective range: 1 830 meters 6 004 feet
Effective range (with tripod): 2 000 meters 6 562 feet

GAU-15/A .50 Caliber Machine Gun

Formerly known as the XM218, the GAU-15/A is the lightweight version of the M2/M3 machine gun system.