The Redfield Revenge Riflescope is rich in features, yet available at a great price. Features an advanced fully multi-coated lens system for the ultimate in brightness, clarity, and resolution in all lighting conditions. Fast focus eyepieces provide unmatched field of view and make reticle focus easy to achieve and maintain in the field. Pop-up resettable 1/4 MOA windage and elevation adjustments assure precision, repeatability, and a wide range of adjustment travel. The exclusive Accu-Ranger Ballistics System allows you to accurately determine the distance to commonly hunted animals and improve the ability to shoot accurately at ranges out to 600 yards without ever having to look away from the target. Simply bracket the animal to range, turn the power selector ring to high magnification and use the appropriate aiming point to shoot. Generous eye relief and Rapid Target Acquisition eyepiece. Fully waterproof, fog proof, and shock proof.