"STEN MK II SMG Construction Manual The Sten MK II construction manual is a complete ""how to"" book utilizing kits from ARMEX, SARCO, etc. Photographs detail manufacturing procedure, blue printed receiver plans and STEN MK II RECEIVER TEMPLATE. With total construction cost of a home built Sten at about $110. 8 1/2 x 11, illus. FOR ENTERTAINMENT AND INFORMATIONAL PURPOSES ONLY !"