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  1. 07-19-2009, 22:31 #1
    tmckay2
    tmckay2 is offline
    Machine Gunner
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    Jan 2009
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    Default heavy barrel versus normal

    i have a heavy barrel 20" rifle. im looking at replacing the front sight with a low profile gas block and flip up sight. does anyone know what the diameter of the gas block id need with a heavy barrel? i see .625 and .75 listed the most

    * edit: nevermind, i found it, says standard and heavy are the same, lightweight and bull are different
    Last edited by tmckay2; 07-20-2009 at 02:43. Reason: found it online finally
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