Troy Industries Rear Flip-Up Battle Sight Di-Optic Aperture (DOA) with Tritium AR-15 Aluminum Black

The Troy Industries Flip-Up Rear Battle Sight is a locking sight designed for flat top receivers. The sight is made of hardened T6 aircraft aluminum with stainless steel components. The sight features two apertures, attaches to the rail with a flathead cross-bolt. The DOA aperture is optically engineered to center your eye faster, and provide a more clear target picture than standard round apertures. Dual apertures with a 0-300 meter setting and a 500 meter setting. Rear sight aperture includes