7.62x39 GO NO-Go Set

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7.62X39 GO NO-Go Set MADE IN USA

Headspace gauges from precision ground hardened US steel to SAAMI’s ANSI tolerances. Headspace is the distance between breech face and the base of the cartridge when the action is closed. It is best to remove the extractor, ejector, and firing pin from the bolt to achieve optimal results when checking headspace. The use of both GO and NO-GO headpsace gauges is essential for all newly reamed chambers or a newly installed barrel to a trunnion . This ensures a safe and accurate chamber that will accept SAAMI maximum ammo. Warning – Never force an action closed on any gauge.


  • 5
    Go no go set

    Posted by Mohamad Hassan on Jan 26th 2022

    Perfect for headspacing my AK

  • 5
    Worked like they should.

    Posted by Darian Arguello on Feb 14th 2021

    No and go gauges are nice and well packaged to prevent damage.