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  1. #1
    Join Date
    Sep 2009
    Posts
    869

    Default AK muzzle thread question for Surefire flash hider

    I have two AKS. One has a small diameter thread where the muzzle device tightens clockwise. The second has a much larger diameter thread where the muzzle device tightens counter clockwise. In both cases there is a detent to release the muzzle device.

    I'd like to add the Surefire flash hiders to set me up for a can going forwards. As these the M14X1 and 25X1.5 threads?

    M14x1 left-hand metric
    http://www.surefire.com/sf3p-762-m14x1-lh.html

    24x1.5 muzzle threads
    http://www.surefire.com/sf3p-762-m24x1-5.html








    Last edited by gssc; 12-17-2017 at 10:37 AM.

  2. #2
    Join Date
    Sep 2009
    Posts
    7,828
    The counter clockwise one is 14-1 lh but the other who knows. If I were to guess it is probably standard ar type but look at the manufacturers description and go from there.

  3. #3
    Join Date
    Sep 2009
    Posts
    869
    The guns are so old I cannot find info on manufacturers websites. I have added pictures to my original post.

  4. #4
    Join Date
    Sep 2009
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    7,828
    I forgot about the bigger one, the thread pitch should be on arsenals websight.

  5. #5
    Join Date
    Jan 2012
    Location
    NW Washington
    Posts
    2,909
    The pics don't work.

    Can you measure the diameter of the threaded section with calipers?

  6. #6
    Join Date
    Jun 2008
    Location
    SE Va
    Posts
    686
    The pics don't work for me either, but, a word of caution. Aks are notorious for having muzzle threads not concentric or very well straight with the bore. For flash hiders, not a big deal. For a suppressor, it can be a very big deal. Make sure to check that before mounting and firing through a suppressor.

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  7. #7
    Join Date
    Dec 2006
    Location
    Pahrump NV
    Posts
    174
    The small diameter thread is probably a 1/2x28, a lot of the ban guns had the original 14x1LH (.530") threads turned off down to a .500", then were re threaded to 1/2x28 at a later date.
    Mad Scientist

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