Alot of people make .45 ACP uppers, but they if you want something with high capacity (over 10 rnds) then you have to get a special lower with a wider magwel to accommodate grease gun mags.
Alot of people make .45 ACP uppers, but they if you want something with high capacity (over 10 rnds) then you have to get a special lower with a wider magwel to accommodate grease gun mags.
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