My Rock Island 1911 GI is setup and working with 38 Super Comp. That's 38 Super, rimless. Basically it's a stock 38 Super top, with the extractor replaced with a 9mm extractor, and it runs great. Will shoot 9mm too, with it headspacing on the extractor. Like to trade for a GI upper in 45ACP. Magazines too (I have 2). Be great if you want my reloading setup, dies, ~350 pieces of brass, etc. Maybe you got 45ACP reloading stuff you could trade too? Would consider trading the whole gun across too. Mine has nice rosewood thin grips, and a tuned trigger, etc.