MIL-C-71186, MILITARY SPECIFICATION: CARBINE, 5.56MM: M4A1 (31 JAN 1994) [S/S BY MIL-DTL-71186]

MIL-C-71186, MILITARY SPECIFICATION: CARBINE, 5.56MM: M4A1 (31 JAN 1994) [S/S BY MIL-DTL-71186]., This specification covers the requirements, examinations and tests for a 5.56mm lightweight, air-cooled, gas operated, magazine-fed carbine designed for either full automatic or semi-automatic fire.