Leupold is a 4th-generation family-owned company that has been building quality optics for nearly 100 years. Every Leupold scope is built for a lifetime of dependability and backed by their Golden Ring? Full Lifetime Guarantee. Over the years shooters have learned to expect a level of performance in keeping with the strongest warranty in the business. All Leupold scopes are 100% waterproof and fogproof and feature premium multicoated lens systems for maximum brightness and image clarity; factory preset parallax adjustments for trouble-free sighting; quality 3X Erector magnification systems; generous eye relief; rugged U.S. craftsmanship; and of course, a manufacturer's full lifetime guarantee. Proven performance and precision at a great price, now upgraded with a multi-coat lens system for exceptional clarity, brightness and contrast, plus micro-friction windage and elevation adjustment dials marked in 1/4-MOA increments for easy fine tuning. Classic lockable eyepiece holds your settings; parallax has been factory preset to 150 yards to accommodate typical hunting ranges. Rugged, lightweight 6061-T6 aircraft aluminum alloy construction. Duplex Reticle Eye Relief: 3.7" FOV = Field of view @100 Yards (feet)