MIL-G-1298A, MILITARY SPECIFICATION: GUNS, MACHINE, CALIBRE .50, BROWNING, M2, HEAVY BARREL (10 OCT 1955)

MIL-G-1298A, MILITARY SPECIFICATION: GUNS, MACHINE, CALIBRE .50, BROWNING, M2, HEAVY BARREL (10 OCT 1955)., This specification covers automatic, recoil-operated, link-belt fed, air-cooled caliber .50 heavy barrel machine guns for fixed or flexible installation on ground mounts and combat vehicles.