Upgrade Kit 1911, .45 ACP, 9 round.
Uses a 17 coil .048 diameter chrome silicon spring. Fits other brands of 10 round .45 gov’t length mags. Upgrade gives 9 round cap. This kit produces 9 rd. cap. Solves many lock-back and feeding issues.
Upgrade Kit 1911, .45 ACP, 9 round.
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