Recent content by JJacobus2

  1. J

    M&P 23 round Magazine, Follower to Magazine Spring Attachment

    Background: I have a new M&P FCP (9mm folding carbine) which came with two 23 round magazines and one 17 round magazine. After a short break-in (200 rounds), when using the 23 round magazines the bolt would intermittently lock open in the middle of a loaded magazine. I also purchased a third 23...
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