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AR15.COM
7/6/2010 2:04:57 PM EDT
I have cruised over it somewhere apparently but what's the factory threading on these?
7/6/2010 2:13:45 PM EDT
[#1]
Quoted:
I have cruised over it somewhere apparently but what's the factory threading on these?


.578-28
7/6/2010 4:12:55 PM EDT
[#2]
tctlrld is just being technical 1/2 x 28 as far as ordering muzzle attachments and suppressors go
7/6/2010 7:47:36 PM EDT
[#3]
Quoted:
tctlrld is just being technical 1/2 x 28 as far as ordering muzzle attachments and suppressors go



.578x28 tpi on fnp45 tactical NOT 1/2x28