MIL-M-45547A, MILITARY SPECIFICATION: MACHINE GUN, 7.62MM, FIXED, M73A1 (31 MAR 1970)

MIL-M-45547A, MILITARY SPECIFICATION: MACHINE GUN, 7.62MM, FIXED, M73A1 (31 MAR 1970)., This specification covers one type of 7.62 millimeter (mm), light-weight, recoil-operated with gas assist, air-cooled, link-belt fed, open-bolt firing, combat vehicle mounted machinegun with quick-change barrel and intergral manual charger.