First production Sten with a conical flash hider and folding forward grip. More complex than later Stens. The Sten's name came from its designers (Shepherd and Turpin) and its place of manufacture (Enfield). Type: Submachine Gun Action: Select-Fire Caliber: 9mm Luger Capacity: 32 Year introduced: 1941, United Kingdom Weight: 72 oz Overall length: 35.3" Status: Discontinued Military use: Yes Intended use: military