Sten MK III
England
9mm Semi Auto (converted 9mm full auto)
16" barrel

Project




Sten MK III Semiautomatic
Completed Gun




This is the Kit I bought


   




Parts all de milled and bead blasted






Cutting the *IO tube
I drilled the corners out (except the sharp corners) with a drill press and used a Dremel tool with a cutting blade and
a saber saw that I shortened the blade on so it would not hit the wall on the oposite side. Lots of filing.


 

















The *IO semiautomatic build kit (part of)











Bolt stop and guide rods assymbled



*IO Hammer installed







Preping to weld on the Rear trigger housing
Mag well was done the same way by setting it where I wanted it and wire tying it down.
Then tack welding and checking






Finish
Finish can be anything you like. I wanted semi gloss finish, so I chose Alumahyde II Semi Gloss from Brownell
It is an epoxy spray that will withstand most solvents.

I wanted as colse to original as possible, which was a plain 1940's gloss black paint (nothing special)


















Re - Assembly








































Marks found on the original pieces


Trigger Housing Cover
** L.B. stands for Line Brothers
They were a toy maker from the late 11800's till WWII. They made Stens and other items for the war.
They returned to toys after the war.



         

Left:   Mag Bottom                                                                  Right: AB on the retainer  
(unknown mark)



         
Left: ** LB on Mag end                                                                       Right: British Broad Arrow mark on stock




S68 on spring retainer cup (unknown mark)




** L.B and serial numbers from original Sten




* IO is
Indianapolis Ordnance, http://indianapolisordnance.com
They manufactured the semi auto kit and tube parts and barrel

** L.B. is Line Brothers
They were a toy maker from the late 11800's till WWII. They made Stens and other items for the war.
They returned to toys after the war.


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