For sale is a semi auto Sten Mk 3 on an Indianapolis Ordnance tube with all the welding and receiver tube machining completed by JBI Armory. You'll have to finish fitting the grip or stock (comes with the commando grip, a stock would need to be machined to fit), clean up the welds, trim the springs to your desired stiffness, go to the gym so you can pull back the charging handle properly, and do any paperwork needed to install the stock if you want to.
This one is ready to go as is, but it looks ugly as sin and the springs could be a lot lighter. About 3 hours of work. Unfortunately, I'm moving so I don't have the time for this project anymore.
Comes with 7 original magazines (5 20 rounds and 2 32 rounds), a can of British Black spray on finish (identical to the original finish once it sets), an original sling, the original bolt and charging handle, and an original magazine pouch.