MIL-L-45935A, MILITARY SPECIFICATION: LAUNCHER, GRENADE, 40MM: DETACHABLE, M203 (05-SEP-1974)
MIL-L-45935A, MILITARY SPECIFICATION: LAUNCHER, GRENADE, 40MM: DETACHABLE, M203 (05-SEP-1974)., This specification covers one type of detachable, pump-action single-shot, grenade launcher which is shoulder-fired when attached to the M16 and M16A1, 5.56mm Rifle.