Mission Defeat the enemy in hand-to-hand combat. Also used as a general field and utility knife. Entered Army Service M6 (1957), M7 (1964), M9 (1987) Description and Specifications The M6 bayonet-knife is used as a bayonet on the M14 series rifle and as a hand weapon. The M7 bayonet-knife is used as a bayonet on the M16 series rifle, the M4 carbine and as a hand weapon. The M9 multipurpose bayonet system is used as a bayonet on the M16 series rifle, on the M4 series carbine, as a hand weapon, as a general field and utility knife as well as a wire cutter together with its scabbard, and as a saw. | | M6 | M7 | M9 | | Blade length: | 6.75 in | 6.5 in | 7 in | | Total length: | 11.5 in | 11.75 in | 12 in | Manufacturer Multiple over the years Point of Contact Office of the Chief of Public Affairs Media Relations Division 1500 Army Pentagon Washington, DC 20310-1500 703.697.7592 / 7591 |