MIL-W-13855D (AMENDMENT 2), MILITARY SPECIFICATION: WEAPONS; SMALL ARMS AND AIRCRAFT ARMAMENT SUBSYSTEMS, GENERAL SPECIFICATION FOR (21 FEB 1973)
MIL-W-13855D (AMENDMENT 2), MILITARY SPECIFICATION: WEAPONS; SMALL ARMS AND AIRCRAFT ARMAMENT SUBSYSTEMS, GENERAL SPECIFICATION FOR (21 FEB 1973).