M79 grenade launcher
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The M79 grenade launcher is a single-shot, shoulder-fired, break-action grenade launcher that fires a 40×46mm grenade, which uses what the US Army calls the High-Low Propulsion System to keep recoil forces low, and first appeared during the... Wikipedia
Action: Break-action
Barrel length: 36.83 cm (14.5 in)
Designed: 1953–1960
Effective firing range: 350 m (383 yd)
Feed system: Breech-loaded
In service: 1961–present
Manufacturer: Springfield Armory, Action Manufacturing Company, Kanarr Corporation, and Thompson-Ramo-Wooldridge