NC Star AR15 DETACHABLE REAR SIGHT Marker Parts & Upgrades and secure it in place

and secure it in place by re-installing the carrier back onto he top shell

Perfect keeping your flex mask and soft ears in the shape they were meant to be and avoiding a scratched lens

Integrated Quick Release weaver style/picatinny mounting system

UV and IR resistant thermal lens

NC Star AR15 DETACHABLE REAR SIGHT Marker Parts & Upgrades and secure it in placeAR 15 M16 Rear Sight Adjustable for Windage and Elevation C Dual apertures Large steel thumb nut and steel rail clamp for positive & secure attachment to your upper receiver. Compact enough, where you will still be able to mount a red dot reflex holographic optic on your AR 15 upper receiver. Precision made A2 rear sight. The mount and rear sight is made from high quality aluminum and steel. Weight: 5. 1 oz Length 2. 7"