The Heresy Group reviews the short version of the M79 Grenade Launcher from King Arms. Based on the classic standalone grenade launcher used during the Vietnam War, this uses the 40mm gas shell BB shower... "This M79 sawed-off grenade launcher is the mini version of the legendary M79 grenade launcher. The shorten barrel and stock, and the folding ladder-style leaf-type rear sight is removed to help to maintain batter maneuver for close battle or any other situations. Full metal build with real wood hand-grip. Trigger guard can be rotate either to the left or right side by pushing the detent on the front."