This is an example of a WWII British STEN submachine gun. It is an early MKII that has the removable barrel assembly with the "T" style metal stock. These were one of the most widely used and prolific manufactured submachine guns produced during WWII. They were designed by Maj. Reginald Shepherd(S) and Harold Turpin(T) and manufactured by the Enfield factory(EN) hence the name "STEN". The total cost to produce one of these weapons was estimated at approximately $9.00 each. They were used by various British/United Kingdom forces, the OSS, and French resistance. They remained in service until the late 1960s when they were replaced by the British Sterling SMG. They had a side mounted 30 round magazine with rudimentary fixed sights and had a cyclic rate of approximately 500 rounds per minute. They were manufactured as a stamped and welded assembly with a machined bolt and barrel. They were so effective that even the Germans copied these as a war expedient wartime version in 1944. The magazine housing is stamped with "STEN MK II" with the serial number and factory number on the underside of the housing. It has an all black painted finish and comes with one stick magazine.