MIL-C-63990C (AMENDMENT-4), MILITARY SPECIFICATION: CARTRIDGE 5.56mm, TRACER, M856 (15-OCT-1999) [S/S BY MIL-DTL-63990D (CONTROLLED DISTRIBUTION)]

MIL-C-63990C (AMENDMENT-4), MILITARY SPECIFICATION: CARTRIDGE 5.56mm, TRACER, M856 (15-OCT-1999) [S/S BY MIL-DTL-63990D (CONTROLLED DISTRIBUTION)]., This amendment forms a part of MIL-C-63990 (AR), dated 15 February 1994, and is approved for use by the US Army Armament, Research, Development and Engineering Center, and is available for use by all Departments and Agencies of the Department of Defense.