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AR15.COM
1/20/2010 9:28:11 AM EDT
What's the factory threading on a colt 6450 9mm barrel? 1/2x32? 1/2x28?

 
1/20/2010 3:55:10 PM EDT
[#1]
1/2x36

1/20/2010 4:12:36 PM EDT
[#2]
Thank you now I'm off to order some other matching barrels!

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