Here are some pictures of my MK3 STEN (U.K. deactivated). This SMG differs considerably from it's older MK2 brother in the way in which it is constructed and is often referred to by some as a "throw away" gun. While I can quite understand why this may be stated perhaps some of the interesting and original design features are not fully understood. This would have been done in this way for ease/cost-reduction of production in time and materials.
Much thought must have gone into the design of this gun by the Engineering team at Lines Brothers for example the very simple yet brilliant idea of putting an external flange along the top edge of the receiver. This doesn't just serve the purposes of providing an easy to reach and convenient area to spot weld but also in doing this it also pulls the tube (receiver) in together tight along the join. The design of the trigger housing and guard, 2 pieces of metal, is also another well thought out design. The way in which it is bent up and includes an upper ring which slips over the receiver and strengthens the rear of the receiver. It also acts to retain the top of the stock mounting. When the trigger guard is welded in place this strengthens and completes the trigger housing assembly. The apertures in the receiver appear to have been punched out when the receiver was in the flat, as would be expected, thus saving valuable machine time.Information
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