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Is barrel removel needed to check threads?
12/14/2011 4:57:54 PM
I have an upper with a KAC URXII installed.
I am wanting to have the threads checked against the bore and a Surefire Flashider installed and timed.
Does the rail/barrel need to be removed from upper receiver to check for consentric threads?
Thank you for your time.
-Arbiter
12/14/2011 5:41:41 PM
Yes it does. 
