NcStar AR-15 Flip Up Front Sight Black - MARFLF

This is a back-up iron sight (BUIS) designed for AR-15 platform rifles, featuring a flip-up A2 front sight post that folds down when not in use. The sight is fully adjustable for elevation and constructed from aluminum and steel, weighing 3.4 oz with dimensions of 1.2" when extended and 2.1" when folded. It mounts on gas blocks with Picatinny rails lower than the receiver rail.