Unlike most "STEN" sub-machine guns on the market today, this is not an American tube receiver with surplus parts, but an actual English make Mark III Sten gun. Fixed blade and peep sights, the former resting on the rib formed by the top welding, with "STEN M.C. MKIII" and "S.68/ H01558" on the magazine well and "L.B." on the left side of the trigger group cover. Properly equipped with a tube steel buttstock, and a tan canvas sling.