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Archived [ARCHIVED THREAD] - FSB too tall?
Posted: 4/9/2006 4:18:13 PM EDT
I have a RRA barrel mounted on a Bushmaster A1 receiver. The front sight pin is almost bottomed out in the FSB just to get zero. Does RRA use the taller style FSB for an A3 setup?

Link Posted: 4/11/2006 9:13:14 AM EDT
[#1]
You have an "F" height FSB on the barrel, and this FSB is set up for a flat top with carry hand.

Instead of just changing out the FSB, just shorten the front sight post instead.
Link Posted: 4/11/2006 6:22:23 PM EDT
[#2]
Hey thanks Dano, I did get a zero set correctly. So for now I will leave it alone but this gives me an excuse to switch over to a flattop.

Archived [ARCHIVED THREAD] - FSB too tall?
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