F.a.b. Defense Front & Rear - Back Up Sights Black

The F.A.B. Defense Front & Rear Back Up Sights Black represent a mission-critical investment for AR-15 operators who understand that primary optics fail in the field. These flip-up iron sights serve as a redundant aiming system, ensuring your rifle remains combat-effective when electronic or magnified optics are damaged or lose zero. Whether you're running a duty rifle, precision platform, or training setup, backup sights are non-negotiable—they've proven themselves across decades of military and law enforcement deployment.

F.A.B. Defense engineered these backup sights with a spring-loaded flip mechanism that deploys instantly and locks securely into position without wobble or rattle. The fixed aperture design is optimized for rapid target acquisition at intermediate ranges while maintaining the low-profile footprint required for cowitness or lower-1/3 absolute co-witness mounting on Picatinny rails. Black anodized aluminum construction resists corrosion and wear, and the lightweight design—just 0.2 lbs for the complete set—adds minimal burden to your platform. The front and rear pairing is calibrated to work as a matched system, eliminating point-of-aim variance between components.

Law enforcement tactical teams and military units favor this setup because it requires zero batteries, zero electronics, and zero training overhead beyond basic iron sight fundamentals. Installation takes minutes—simply secure the front sight to your gas block rail or handguard and the rear to your upper receiver's Picatinny system. These sights excel in duty rifles, recce builds, and training carbines where reliability under stress is paramount. Operators who've transitioned from primary optics to iron sights report confidence in their accuracy to 300 meters and strong performance in low-light conditions where illuminated reticles can be liabilities.