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Thread: 9mm upper on 5.56 lower?

  1. 11-23-07, 15:38 #11
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    SuicideHz
    SuicideHz is offline Site Sponsor
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    I do know that you can use KNS anti rotational pins to prevent this problem and IIRC, it only happens when going FA or bumping...

    Do not taunt Happy Fun Ball...
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  2. 11-23-07, 21:38 #12
    MH64
    MH64 is offline Member
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    OK let me see if I got this right.

    A Hahn top load block
    Ramped 9mm bolt
    Std AR 5.56 semi hammer
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