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Did not function as promised
Written on Mar 07, 2022
Review for
Guntec USA AR-15 9mm Magwell Adapter Block
I bought this to use in an Aero precision M4E1 lower. There are three things wrong with this product though. First off, you cannot get the adapter into the lower without filing it down or beating it in with a hammer. Second, the 32 round colt 9mm box mags are incredibly loose fitting inside the adapter. There is an insane amount of play. Lastly, none of the BCGs that I have will clear the sides of the feed lip, and all of my BCGs are cut for both glock and colt. Basically, it's useless. Save yourself the hassle and buy the Hahn Precision one (part # A9CSRD0405) instead. It's twice the cost, but so very worth it.
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