Originally Posted by
the 556 guy
I changed my FSB to a low-profile block, and added the longest Troy Alpha to my 16" barrel on my 6920. All this for the purpose of putting a flip up sight out near the A2 birdcage compensator.
My groups at 50 yards are now larger (4-5 inches) than using the stock FSB and front sight post. Am I faster at acquiring the target and delivering the shot? Don't know yet, too soon to tell.
But my questions are: (1) shouldn't that increase of 5-6 inches of sight radius have made my groups better? --OR-- (2) would the increase in sight radius make the "dance" of chasing the FSP more pronounced until I've trained more? (3) or could it be my choice of the Magpul flip up front sight is so different in shape (shorter/squatter) that my eye is just not used to it yet?