Just need the barrel. If your 40 mags try to double feed or lock back with a round left in the mag, you can squeeze the feds lips together slightly and should work ok. Most of my 40 mags worked ok without any adjustment.
I can buy stock 9mm mags and they will fit in my 40 right? I'd rather not mess with my 40 mags since this isn't a permanant conversion, I just like to be able to shoot some 9's every now and then. Thanks for your info guys
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