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Archived [ARCHIVED THREAD] - Setting the FS post for elevation properly (xtra-tall BM for flat top - read within)
Posted: 8/30/2005 12:34:23 PM EDT
Swapping out a barrel and building an A4. I have a Colt 20" Gov't. barrel that was originally (tightly!) on a C7 upper.  Gonna put this on a flattop CMT upper.

I am aware that the "F" marked FSB

Link Posted: 8/30/2005 12:46:25 PM EDT
[#1]
d00p!
Link Posted: 8/30/2005 3:08:30 PM EDT
[#2]
Quoted:
Swapping out a barrel and building an A4. I have a Colt 20" Gov't. barrel that was originally (tightly!) on a C7 upper.  Gonna put this on a flattop CMT upper.

I am aware that the "F" marked FSB


If the FSB is already "F" marked, sounds like you'll just need a BUIS and you'll be set.

WIZZO
Archived [ARCHIVED THREAD] - Setting the FS post for elevation properly (xtra-tall BM for flat top - read within)
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