Equipped with an illuminated red/green Mil-Dot reticle, the Sightmark Triple Duty 3-9x 42mm Riflescope aids in range estimation and shooting in low-light conditions. Its cutting-edge glass and fully multi-coated optics transmit a bright, crisp image that makes tracking and shooting targets almost effortless. The Triple Duty 3-9x 42mm Riflescope features a one-piece 30mm tube that delivers exceptional light transmission and a wide field-of-view. O-ring sealed and nitrogen-purged, the precision scope is both fog proof and water resistant. The included oversized, locking windage and elevation turrets with ¼-inch MOA clicks provide an additional level of accuracy and ensures that the scope stays zeroed. The Triple Duty series of riflescopes are complimentary to any shooter's arsenal.