Individual and Crew-Served Systems

M2HB .50 caliber (12.7mm) heavy machine gun

General Dynamics Ordnance and Tactical Systems produces the .50 Caliber M2 Heavy Barrel (M2HB) machine gun, a beltfed, recoil operated, air-cooled, crew-served weapon capable of right or left-hand feed. The weapon’s lethality, durability and versatility make it ideal for offensive and defensive operations.

The M2 machine gun is one of the world’s most reliable, highly accurate and effective weapons.

The M2HB fires a variety of NATO .50 Caliber ammunition to include: ball, tracer, armor-piercing, incendiary, and saboted light armor penetrator. The M2HB will deliver lethal effects against multiple target types. The maximum effective range of the M2HB is 1,830 meters for area targets and 1,500 meters for point targets.


• Sustained automatic or single-shot firing
• Durable, rugged design
• Fires from the closed bolt for single-shot accuracy
• Replaceable heavy barrel assembly
• Simple design for ease of maintenance
• Adjustable headspace and timing
• Converts from left-hand to right-hand feed
• Barrel life exceeds 10,000 rounds
• Variety of mounting applications
• Trigger block safety



.50 caliber / 12.7mm (NATO)

Weight 84 pounds (38.2 kg)

65.13 inches (1,654mm)

Width 9 inches (230mm)
Cyclic rate of fire 450-600 rounds per minute
Muzzle velocity

3,050 feet per second
(930 meters per second)

Barrel weight 26 pounds (11.79 kg)
Barrel construction cobalt-chromium alloy liner
Max Effective Range 2,000 yards (1,830m)
Maximum range 7,400 yards (6,766m)


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