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 of the gun, making it suitable for use by both infantry and in armored vehicles.
The 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,” Armedforcesupdate
U.S. Ordnance, Inc., Reno, Nev. was awarded on July 14, 2009 a $ 6,7500,300 firm-fixed-price contract for procuring 548 each M2 machine guns for the U.s. Army with a potential for a maximum quantity of 30,678. Work is to be performed in Reno, Nev. with an estimated completion date of Aug. 31, 2012, defense.gov
In August 2009, U.S. Ordnance received a 4-year, indefinite-quantity contract from the U.S. Army for M2HB, M2A2 (QCB) and M48 machine guns to support foreign military sales. There have been four delivery orders under this contract totaling (475) M2HBs, (475) spare barrels and (475) basic accessories, (252) M2A2 quick change barrels, (80) M48 weapon systems, plus parts and OCONUS training. The end users were the Colombian Army, Colombian Navy, and the Iraq National Police. FBO.gov