Experimental rocket-propelled projectile pistol manufactured by MBA Associates of San Ramon, California. Fired self-propelled rocket rounds rather than conventional cartridges, producing minimal recoil and no powder gases in the action. Type: Pistol Action: Semi-Automatic Caliber: 13mm Gyrojet Capacity: 6 Year introduced: 1966, USA Weight: 15 oz Overall length: 9" Status: Discontinued Intended use: Collecting, Curiosity