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Posted: 2/5/2006 6:23:02 PM EDT
Are all Colt 9mm barrels the same diameter at the FSB???

I'd like to replace a shaved FSB with a standard A2 FSB, but all the ones in my parts bin are for HB 5.56 barrels and don't fit.

Thanks.

Link Posted: 2/5/2006 8:45:07 PM EDT
the fsb on my 6450 is .625 i believe.

will verify when i get home
Link Posted: 2/10/2006 12:13:08 PM EDT
Anyone else got the "for sure" answer?
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