That’s really cool! Any build pictures?
Nah I don't think so. Literally bought a Uzi front end. Cut it to the length I wanted so the barrel would be the same depth as a Mac barrel, turned down a Uzi barrel to fit in a Mac upper. Welded it together, made a top plate and welded it and blended it all together. For the stock I made an adapter plate to so I could use a lage stock plate I had. So the adapter allows Uzi stock to mate with a lage m11 stock plate.
Have considered making these and selling them but idk if there would be enough interest. Also Uzi barrels seem to be harder to find then when I bought my parts.