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Site News Could You Have Stopped This? Vegas Shooting Analysis with Attorneys on Retainer
2/28/2013 1:33:37 PM EDT
Greetings from ct. I am a long time lurker, who decided to join. Great site. My question. I am building a ar in 7.62x39. I have a colt upper in that caliber, with a bird cage flash hider. Cant have that in ct. Does anyone know the thread size so I can have a compensator and swap them out without any down time?:  Thanks in advance
3/1/2013 2:44:10 AM EDT
[#1]
Welcome to the forum.

Normal thread pitch for a 7.62x39 barrel is 5/8x24.  There are several good muzzle break/compensators available in that thread size.
3/1/2013 10:32:00 AM EDT
[#2]
1/2-36 on a factory Colt.
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