Troy Industries Di-Optic Aperture Folding Battle Sight Rear
Di-Optic Aperture (DOA) Folding Rear Sight    Advanced design, superior sighting and battle-ready toughness define Troy Industries’ Di-Optic Aperture (DOA) Folding Rear BattleSight.    These sights provide lightning fast target acquisition and are manufactured to exceed military specs. The optically engineered apertures center your eyes instantly and effortlessly providing a clearer target picture than with round apertures.    The sights feature two settings, one for up to 300 meters and a second for up to 500 meters. This versatility makes the DOA ideal for military, law enforcement and home defense applications. These advanced sights have been extensively field-tested and, like all Troy Industries products, are Battle Ready.    Note: Sight is designed to work on same plane rail systems only. Will not work with a railed gas block that is higher or lower than the receiver.    Features:    - Faster target acquisition with Di-Optic Aperture  - Increases accuracy to 550m  - Quick install, easy adjust  - 0.460" profile when folded  - Protected adjustment wheel  - Dual same plane aperture .50 MOA per click  - Aircraft aluminum 6061 & stainless steel  - Type III hard coat w/ Black oxide finish