Not relevant to this site, I know, but I figured someone here knows the answer. I just bought a 1928A1 thompson kit from Sportsmans guide. kinda pricey, $539, but the kit was new when demilled, and there ain't gonna be any more brought in to the country, plus I'v wanted one for almost 40 years. I got to hump a chinese made 1928a1 in Nam, and friggin loved it! If I had known then what a chinese made thompson would be worth, I'd have found a way to bring it back with me. Anyway, looking for info on sites that are dedicated to the thompson, and building a receiver for one. Thanks for your help

oldjarheadfart try machinegunbooks.com. Its like the AR15.com for Thompson, both F/A and S/A