Steiner's Riflescopes are perfectly suited to your hunting, competitive or tactical shooting adventures. The precision adjustment system pinpoints accuracy which is easily achieved with Steiner windage and elevation adjustment systems. Features aluminum, one piece 30mm tube; locking dioptor; consistent eye relief; tapered, metal magnification ring; resettable turrets; 2nd rotation indicator; throw lever that allows quick, easy magnification changes and Tenebraex lens covers to protect the lenses from dust and moisture. The illuminated 3TR 5.56 reticle has four night and 7 day level settings. Battery not included.