[ARCHIVED THREAD] - which fsb

Posted: 12/5/2014 10:07:28 AM EDT

im wanting to build a a2 type upper with built in carry handle upper.i was wanting to have a fsb insalled on a barrel but thought there was a difference with f marked being for flat top receivers?the barrel is .625

Posted: 12/5/2014 10:59:05 AM EDT

[#1]

What length is your front sight going to be? If it is rifle length, you need standard. If carbine or mid, f marked.

Posted: 12/5/2014 12:12:49 PM EDT

[#2]

"F" stamped FSB's are for removable carry handles. Non-"F" stamped FSB are for fixed carry handles. So you would want a Non-Stamped FSB for your build.
When Colt came out with the removable carry handle the rear sight was a tad higher. So rather than redesign the removable carry handle, they just developed a taller FSB and stamped it with an "F".

Posted: 12/5/2014 12:21:21 PM EDT

[#3]

I bought a non "F" marked FSB for my A2 clone not long ago from Fulton Armory.

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Posted: 12/5/2014 12:30:19 PM EDT

[#4]

ok thanks for the info..its gonna be a 16 inch cgs.

Posted: 12/5/2014 7:09:44 PM EDT

[#5]

Quote History

Quoted:
What length is your front sight going to be? If it is rifle length, you need standard. If carbine or mid, f marked.

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Actually has to do with fixed vs removable carry handle, not barrel length.

[ARCHIVED THREAD] - which fsb

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[ARCHIVED THREAD] - which fsb

[ARCHIVED THREAD] - which fsb