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The U.S. Ordnance M2A2 machine gun is an air-cooled, belt-fed machine gun that fires from a closed bolt and operates on the short recoil principle with fixed headspace and timing. It is capable of both sustained automatic and accurate single-shot fire. It can be mounted on a vehicle, boat, helicopter or other aircraft. Ammunition may be fed from either the left or right side for use by both infantry and in armored vehicles.


U.S. Ordnance’s M2A2 weapon system has been tested to well over 50,000 rounds. Its single-breech lock system allows for field rebuild, eliminating the need for depot-level maintenance during its lifetime and thereby greatly reducing logistical support.

 U.S. Ordnance developed its M2A2 12.7mm weapon after years of experience manufacturing machine guns for the U.S. Department of Defense and U.S. Foreign Allies.  


The U.S. Ordnance M2A2 offers the proven performance of the existing M2HB machine gun but also features fixed headspace and timing. This upgrade improves the performance of the battle-proven M2HB weapon system, largely increases the level of safety for operating personnel and affords barrel changing in 10 seconds or less. Our M2A2 system allows one person to change a barrel, which reduces exposure time to enemy fire and quickly readies the weapon for continued operation.

Key Features

Fixed headspace and timing eliminate safety concerns associated with barrel changing and improper timing.

Non-QCB parts are interchangeable with M2HB machine guns, which eliminate logistics concerns during fielding.

Fires all types of NATO ammunition: Ball, Tracer, AP, API, APIT, AP Hardcore and Multipurpose.

Sustained automatic or single-shot firing from the closed bolt for single-shot accuracy

Improved barrel handle simplifies hot-barrel changing with improved barrel alignment, and the retention system assures the barrel is securely locked and aligned.

Can be fitted to all types of armored, light and heavy vehicles, patrol boats, helicopters and other aircraft.

Simple, durable, and rugged design for ease of mainte-    nance and converts from left hand to right hand feed.

Variety of mounting applications that can be fired manually or by solenoid.

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