This sight accessory has the ability to switch in a split second from CQB (Close Quarters Battle) to longer range. Reflex Sight features multi-coated lens and 30mm tube for excellent light transmission. Magnifier comes with a flip mount for instant transition. In addition, this optic sight accessory is shockproof waterproof and fogproof. Includes the mount pictured, hex wrench and the magnifier itself as well as covers and glass cloth. Compatable with eotech, aim point and trijicon acog. Lines up perfect with our holographic sights!