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AR15.COM
4/21/2010 10:13:11 PM EDT
What size of allan wrench does the rear sight set screw use??

Nevermind I found that it is the 1/16 that fits the rear sight set screw..  It came lose after 50 rounds and just added some loctite so the next range trip should have no issues.  As for the weapon itself it fed great and shot very nice.  I used the standard Colt mags that came with the gun but next range day I will be using the Wilson Combat ETM mags to see how they function.  I am still looking for a nice kydex holster and but the Blade-Tech Black Ice holster looks good..