NC Star AR-15 Flip Up Front Sight

Precision made flip-up A2 front sight. The MARFLF will fit virtually all AR-15 Picatinny rail gas blocks. Manufactured from steel and aluminum, the MARFLF will not melt on your gas block under sustained shooting, unlike other manufacturers plastic back-up front sights. A2 front sight is fully adjustable for elevation. Front sight post fold down out of view of your optics when not in use. Large steel thumb nut and precise rail clamp for positive & secure attachment to your upper receiver. With the MARFLF flip-up sight folded down, it's 2 1/16" Length X 3/4" Height (mount height) & 13/16" Height (A2 front sight post when folded).