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AR15.COM
11/11/2004 6:37:08 AM EDT
Can someone post the thread size used for installing an A2 flash suppressor?  I really need to do what the rest of you have done and get the 6400 upper sent off to ADCO.  Thanks.
11/11/2004 6:46:40 AM EDT
[#1]
Thread is 1/2" x 28 TPI (threads per inch)

Danny