Leupold Mark 4 1-3x14mm CQ/T Riflescope is a revolutionary optical sight for tactical firearms such as the AR-15 and M16. Developed in cooperation with both the U.S. military and law enforcement agencies, Leupold Mark 4 CQ/T Scope combines the strengths of a red dot sight and a variable power riflescope. Incredibly tough, 100 percent waterproof, and devastatingly accurate, only Leupold Mark 4 CQ/T Scope is ready and able to handle the variety of close-contact situations common to both law enforcement and the military.