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Thread: Loose piston nut

  1. #1
    Join Date
    Apr 2016
    Location
    East Kentucky
    Posts
    3

    Default Loose piston nut

    Hey guys, I have an AOM180 that the piston nut works loose on every 100 rounds or so. I don't like the idea of staking the nut on a fairly new gun. What other options do I have?

  2. #2
    Join Date
    Dec 2017
    Posts
    12

    Default

    It's been a year to the day for this post without a response, but I'll pick it up anyway in the hope it will help someone. A.O. sells a spanning wrench for tightening the piston nut. You can find it at https://www.auto-ordnance.com/Gun-Pa...ch-MCANUTW.asp. The piston nut is screwed in rather than staked, so it's probably a good idea to check the tightness every 500 rounds or so. Although I have not tried it myself, I've heard that applying Loctite after tightening will keep the nut tight permanently.

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