.45ACP ConversionClosed bolt, blowback operation
M3 Greasegun magazines
MAC10 Greasegun Conversion Magwell
RPK and Polytech barrel blocks
Barrel is a 16.5" replacement used on the semi-auto Thompson. I turned it in my lathe to accept the barrel blocks and fit the trunnion.
Polish buttstock, pistol grip, and upper handguard
Russian RPK lower handguard
Trunnion was welded and remachined.
Receiver was shortened 0.800" at the front.
Carrier was machined to allow bolt to slide straight back.
Cocking handle was moved back 0.800" to allow cases to eject.
Bolt stem had 0.800" cut from the back end.
Bolt was welded into carrier.
Various other mods and custom fitting.
I had problems with cases not ejecting properly, but that was fixed with some machine work on the bolt. This thing is REALLY fun to shoot. I still don't have the metal ferrule on the lower handguard in this pic. At the time of this post, the paint is drying on the ferrule, so I'll install it later.