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Mag adaptor to use unmodified uzi mags with an AR9 - still in beta - use at your own risk - update 1/7/24
Quick note - I have over 1000 rounds through this design. The only weak point is the ejector. I've run one for more than 800 rounds before it warped. The problem with the design is the slot in the BCG only allows for a 2mm wide fin. Its a wear part I replace at 500 rounds or so. Takes less than 20 min to print. Printing one in something better than PLA+ should increase longevity. Ive had no problems with life/longevity of the other parts.
Quick note - I have over 1000 rounds through this design. The only weak point is the ejector. I've run one for more than 800 rounds before it warped. The problem with the design is the slot in the BCG only allows for a 2mm wide fin. Its a wear part I replace at 500 rounds or so. Takes less than 20 min to print. Printing one in something better than PLA+ should increase longevity. Ive had no problems with life/longevity of the other parts.