PICATINNY ARSENAL, N.J. (Nov. 30, 2012) -- The U.S. Army recently announced that the M2A1 .50 Caliber Machine Gun was among its top 10 "Army Greatest Inventions" for the 2011 calendar year.

The US Marine Corps Systems Command (MCSC) has detailed how the updated M2A1.50-caliber machine gun will increase marines' survivability and lethality on the battlefield. The M2A1 is an upgrade to the ...

Marine Corps Systems Command is equipping Marines with the updated M2A1 .50-caliber machine gun, increasing Marines’ survivability and lethality on the battlefield. The M2A1 is an upgrade to the ...

Associated components are the M63 antiaircraft mount and the M3 tripod mount. The M2A1 with Quick Change Barrel (QCB) is an enhancement to the M2 .50 Caliber Machine Gun. It offers Soldiers ...

50 caliber) machine-guns. The upgrade converts existing weapons to the M2A1 standard and allows for quick barrel changes. Each barrel weighs 10.9 kg/24 pounds. There is also a mounting rail for scopes ...

50-caliber machine gun, aka “Ma Deuce.” The Corps is getting an upgraded version of the beast, called the M2A1. Finally! It’s only been six years since the Army started getting the M2A1 back ...