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Posted: 8/21/2006 11:22:25 PM EDT
Are there any relative (dis)advantages to mounting the folding front sight on a free-float rail versus the gas block on the barrel?

I like the rail mounted BUIS for aesthetics but wasn't sure of any accuracy issues.

Link Posted: 8/22/2006 1:36:04 AM EDT
[Last Edit: 8/22/2006 1:36:18 AM EDT by DevL]
Well for one its not attached to the barrel and the foreend can flex. For another its bolted on and that is a weak point.

That said I prefer rail mounted BUIS. The BU means BACK UP... as in NOT primary. I could care less if I get 1 MOA vs 2 MOA groups at 25 yards using irons in an emergency. I will probably never need to use the irons anyway and will only do so for fun every once in a while.
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