M-205 Grenade Launcher

M-205 Grenade Launcher is the military's 40mm grenade launcher. The M-205 is usable as an under-barrel weapon, attached to a rifle. It is also usable as a weapon on its own. It is a single-shot, breech-loading grenade launcher, made out of polymers and composites. Other than that, it is not notably different from the launchers in existence 45 years ago.

Source

 * Home of the Brave, pg.83,84
 * Blackhand's Street Weapons, pg.35