Product Features 3:1 Zoom Ratio A versatile 3:1 zoom ratio erector system that is ideal for virtually any situation. CDS Custom Dial System Select models have CDS (Custom Dial System) elevation dials, which allow you to quickly dial your elevation to different sight-in ranges with a custom adjustment matched to your specific ballistics information. Out of the box, you are ready to dial MOA corrections to hit targets at any distance, with support of your RX Series rangefinder, set up with your ballistics. Order your free custom laser marked dial from the Leupold Custom shop with your exact ballistics and conditions. Now just turn the dial to the range mark and shoot. 1/4 MOA Finger Click 1/4 MOA precision finger click adjustments for windage and elevation offer absolute repeatability and dependability over a lifetime of extreme use. Waterproof & Fogproof Absolute waterproof and fogproof integrity: ready for a lifetime in the field, in all conditions. One inch Maintube Durable and compact, the one-inch maintube is lightweight and fits more legacy rings. 6061-T6 Aircraft Quality Aluminum Crafted from 6061-T6 aircraft quality aluminum. Twilight Light Management System Scratch Resistant Lenses Outer lens surfaces are scratch resistant to military standard extreme abrasion specification. Product Specifications Weight (oz): 12.2 Linear FOV (ft/100 yd) - Low: 33.7 Linear FOV (ft/100 yd) - High: 13.6 Linear FOV (m/100 m) - Low: 11.22 Linear FOV (m/100 m) - High: 4.54 Eye Relief (in) - Low: 4.17 Eye Relief (in) - High: 3.66 Eye Relief (mm) - Low: 106 Eye Relief (mm) - High: 93 Weight (g): 346 Elevation Adjustment Range (MOA): 60 Elevation Adjustment Range (MIL): 17.5 Windage Adjustment Range (MOA): 60 Windage Adjustment Range (MIL): 17.5 Exit Pupil (mm) - High: 4.7