FAB Defense FXFRBSOSB Offset Flip-Up Iron Sights - Black

Add a reliable backup aiming system to your flat-top AR-15 with the FAB Defense FXFRBSOSB Front and Rear Offset Flip-Up Sight Set. Built specifically for the AR platform, this kit ships as a complete front-and-rear pair in black, ready to mount to a standard rail. The offset mounting position tucks the sights to the side of the rail, leaving the top free for a primary red dot, holographic sight, or magnifier.

Constructed from durable fiberglass-reinforced polymer with metal internal components, the FXFRBSOSB is lightweight yet rugged enough for repeated folding and deployment. The Rear Back-Up Sight (RBS) is manually adjustable for windage, and the Front Back-Up Sight (FBS) is manually adjustable for elevation, so the offset pair can be zeroed to match your primary optic. Each sight locks positively in both the upright and folded positions for snag-free handling.

Whether used as a co-witnessed secondary aiming system or paired with your primary optic, the FAB Defense FRBS Offset Kit delivers dependable iron-sight performance in a compact, low-profile package.