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  1. 16 May 2010, 21:30 #1
    alpha.kilo
    alpha.kilo is offline Member
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    6920 Gas Port Size

    I was unable to come up with anything on a search so I am hoping somebody can give me some help with a question:

    Does anybody know what the spec is on the gas port of a Colt 6920? I believe that the milspec gas port on the M4 is .062. But I am also wondering if this is the size Colt is specifying for their civilian 6920 or 6921 carbines.

    Anybody have any experience with the 6920 gas ports?

    AK
    Last edited by alpha.kilo; 16 May 2010 at 21:42. Reason: clarification and typo
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