Replica Full Metal WWII MkII Sten More than likely made in New Zealand has produced a faithful replica of the famous WWII MkII STEN British Submachine Gun. The STEN was named after its chief designers Major Reginald Shepherd and Harold Turpin (ST), and Enfield (EN) a UK government-owned rifle factory in London. The MkII STEN features details such as its distinct side-mounted magazine configuration and rugged tube stock. This is perfect for WWII reenactors as well as fans of military history and historical memorabilia.