(Maschinenpistole) SMG manufactured by Waffenfabrik Steyr, used by the Austrian police and subsequently by units of the Wehrmacht and Waffen SS in WW II. An exceptionally well-made weapon, it was used by some forces well into the
A Mk II Sten gun (home built from a parts kit) modified to accept a drum magazine from a Finnish Suomi KP/-31 submachine gun. The Sten gun's simplicity meant it could be mass produced quickly and cheaply, and by the end of World War Two it cost less than $10 to manufacture one. It can also be made as a DIY project, using mail order parts and a dremel tool.