Tactical Rear Front Sight Carry Handle Mount Detachable Adjustable Low Profile Quick Release Mount Quick detachable carry handle scope mounts with mechanical rear sight.Tactical Carry Handle Mount Base With adjustable Rear Sight, the Rear Sight has Large and Small rear Aperture. Adjustable for Elevation and Windage. Flat Top Carry Handle and Rear Sight. Quick release nut, Easy to hook up, easy to mount and dismount. Design to raise up the mount base level Carry Handle Top Allow installation of Aiming Devise without removing carry handle