Sight Mark Triple Duty Rifle Scope Designed for superior range estimation and long-distance shooting, the Sightmark® Triple Duty 8.5-25x50 Riflescope utilizes cutting-edge glass with fully multi-coated optics for exceptional clarity. This high-power riflescope features a Mil-Dot Dot reticle, a large 56mm objective lens and a wide magnification range for crisp range estimation at long distances. The one-piece 30mm tube offers a wide field-of-view for quick target acquisition like no other. This precision scope is equipped with a parallax adjustment knob and oversized, locking windage and elevation turrets with 1/8-inch MOA clicks, providing an additional level of accuracy and ensuring that the scope stays zeroed. O-ring sealed and nitrogen-purged, the Triple Duty 8.5-25x50 MDD Riflescope is both fog proof and water resistant. The Triple Duty series of riflescopes are complimentary to any shooter's arsenal.