2336 Posted November 10, 2014 Report Share Posted November 10, 2014 Folks, I need two front sight bases installed and need some good guidance/recommendations. The first barrel is a 20" Rainier AR-10 format barrel that will get a standard A2 FSB, the other is an 18" Black Hole Weaponry DPMS format unit that will get an "F" marked FSB. Both barrels and both FSB's are .750". Thanks in advance folks! <thumbsup> Quote Link to comment Share on other sites More sharing options...
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