The Trijicon ACOG 3.5x35 Scope features a dual illuminated green crosshair reticle for precise aim in a variety of light conditions. This ACOG scope is constructed with military-grade aluminum alloy and is waterproof and fogproof for durability and reliability. A larger viewing port enables faster target acquisition, while multi-coated lenses deliver clear imagery. Trijicon fiber optics on this rifle scope automatically adjust the brightness and contrast levels in daylight. Calibrated for the ballistics of common .223 rounds, the Trijicon ACOG 3.5x35 Scope with Illuminated Green Crosshair offers accurate aim in a battery-free illuminated scope.