The Troy Industries AR-15 Rear Flip-Up Battle Sight is a drop-in backup sight designed for shooters who run primary optics but need a failsafe when electronics fail or sight lines shift. Built for flat-top receivers, this aluminum rear sight deploys on demand and collapses down to just 0.460 inches when stowed—slim enough to tuck under most modern optic setups without adding bulk. Spring-loaded and dual-detent locked, it won't rattle loose from recoil or rough handling, yet pops back to battery instantly when you need it.

Troy engineered this sight with the working gun in mind. The protected aperture and post design shields your sighting surfaces from brush, impacts, and gear snag—critical when you're moving through timber or tight spaces. A spring-loaded button on the left side of the base controls deployment and retraction; no fumbling with levers or knobs that catch fabric or branches. Windage is dialed via a detent-locking adjustment wheel in half-MOA increments, letting you tune for your ammunition and distance without guesswork.

Installation is straightforward: the rear sight mounts directly to your flat-top Picatinny rail using a standard flathead screwdriver. The base clamps securely and won't loosen under firing schedule. Aperture height mirrors factory sight geometry, so if you've run Troy front posts before or are familiar with rifle irons, the sight picture feels natural and fast. Whether you're building a duty rifle, a 3-gun platform, or an all-weather hunting gun that demands redundancy, this rear sight earns its place in the backup lineup.

The Troy Industries AR-15 Rear Flip-Up Battle Sight is a drop-in backup sight designed for shooters who run primary optics but need a failsafe when electronics fail or sight lines shift. Built for flat-top receivers, this aluminum rear sight deploys on demand and collapses down to just 0.460 inches when stowed—slim enough to tuck under most modern optic setups without adding bulk. Spring-loaded and dual-detent locked, it won't rattle loose from recoil or rough handling, yet pops back to battery instantly when you need it.

Troy engineered this sight with the working gun in mind. The protected aperture and post design shields your sighting surfaces from brush, impacts, and gear snag—critical when you're moving through timber or tight spaces. A spring-loaded button on the left side of the base controls deployment and retraction; no fumbling with levers or knobs that catch fabric or branches. Windage is dialed via a detent-locking adjustment wheel in half-MOA increments, letting you tune for your ammunition and distance without guesswork.

Installation is straightforward: the rear sight mounts directly to your flat-top Picatinny rail using a standard flathead screwdriver. The base clamps securely and won't loosen under firing schedule. Aperture height mirrors factory sight geometry, so if you've run Troy front posts before or are familiar with rifle irons, the sight picture feels natural and fast. Whether you're building a duty rifle, a 3-gun platform, or an all-weather hunting gun that demands redundancy, this rear sight earns its place in the backup lineup.