AR15 FLIP UP REAR SIGHT

The NcSTAR AR15 Flip Up Rear Sight (MARFLR) is a rapid-deployment backup aiming system designed for AR-15 platform rifles. This flip-up rear sight provides shooters with an instant fallback aiming method when primary optics fail, malfunction, or require maintenance in the field. Weighing just 0.28 lbs, the compact design minimizes impact on overall rifle balance while offering a robust, spring-actuated flip mechanism that deploys and secures with positive tactile feedback.

The sight's low-profile footprint allows co-witness or absolute co-witness mounting on standard Picatinny rails, maintaining compatibility with modern optic configurations. The flip-up design keeps the sight stowed when not needed, reducing snag hazards during weapon handling and maintaining sight picture clarity with mounted optics. A functional rear aperture enables rapid target acquisition across typical defensive and precision rifle distances. The NcSTAR MARFLR construction handles the recoil impulse common to intermediate and full-power rifle cartridges without shift or loosening of zero.

This backup sight suits patrol officers, competitive shooters, hunters, and trainers who run primary red-dot or magnified scopes but require a mechanical aiming solution independent of battery life or electronics. Tactical rifle builds and modular setups benefit from the quick-transition capability, and military/law enforcement training environments commonly employ flip-up sights as mandatory redundancy on issued or duty rifles.

Backup iron sights (BUIS) represent an industry standard for AR platform weapons, and NcSTAR's flip-up configuration balances affordability with practical field reliability. The MARFLR integrates seamlessly into AR-15 Picatinny rail systems, making it a straightforward upgrade for existing rifle platforms.