Troy Industries Battle Sight AR-15 Rear Sight Black Di-Optic Aperture

Looking for rock solid stability and dead-on accuracy in a fixed sight? Advanced design, superior sighting and BattleReady toughness define Troy Industries Di-Optic Aperture (DOA) fixed sights. Troy Industries Di-Optic Aperture (DOA) fixed sights gets the job done with an advanced design, superior sighting ability and BattleReady toughness. This permanent, rail-mounted alternative to a standard A2 sight allows limitless mounting options on all-length rails with a serrated ramp to eliminate glare