MIL-G-45185 (INTERIM AMENDMENT 4), MILITARY SPECIFICATION: GUN, AUTOMATIC, 20-MM, M39A2 (W/REPAIR PARTS AND W/O EQUIPMENT OR ACCESSORIES) (6 JUN 1967)

MIL-G-45185 (INTERIM AMENDMENT 4), MILITARY SPECIFICATION: GUN, AUTOMATIC, 20-MM, M39A2 (W/REPAIR PARTS AND W/O EQUIPMENT OR ACCESSORIES) (6 JUN 1967)., This Interim Amendment is issued for use by the Department of the Army with Military Specification MIL-G-45185, dated 16 October 1958.