The M203 is a well-known single-shot 40mm under-barrel grenade launcher designed to attach to the rifle. It has become the first weapon
M79 is a single-shot, shoulder-fire, break-action grenade launcher developed by Springfield Armory. It was the first weapon of its type ever produced.
M320 Grenade Launcher Module is a next-generation single-shot 40 mm grenade launcher designated to replace the M203 for the US Army. M320