Here’s another design sent in, this time for a simplified copy of the classic Sten gun. As pictured, It’s possible to construct a clone of the original bolt using only a drill and an angle grinder.

The example shown was of course constructed as a non-firing dummy replica for obvious legal reasons. All information contained is strictly for academic / technical study and entertainment purposes only.

PDF:  The DIY STEN Gun – Practical Scrap Metal Small Arms Vol.3