MIL-R-3285 (AMENDMENT 1), MILITARY SPECIFICATION: RIFLES, U. S., CALIBER. 30, M1 AND M1C (19 AUG 1953)

MIL-R-3285 (AMENDMENT 1), MILITARY SPECIFICATION: RIFLES, U. S., CALIBER. 30, M1 AND M1C (19 AUG 1953)., This amendment forms a part of Military Specification MIL-R-3285, 8 September 1960, and has been approved by the Department of the Army, the Navy, and the Air Force