Leupold 114410 VX-2 Rifle Scope Quantum optical System with Index match lens coatings with diamond coat and edge blackened lenses Custom Dial System (cds) lets you tailor your scope settings to your specific ballistics and sight-in conditions Fast-focus Eyepiece has a sleek new design for faster focusing One-inch main tube, manufactured from 6061-t6 aircraft quality aluminum alloy Includes a protective cover