Trijicon 100136 ACOG Black Hardcoat Anodized 3.5x35mm Illuminated Red Donut .223/5.56 BDC Reticle

Trijicon's ACOG is a fixed power, compact riflescope with an illuminated reticle pattern for use in bright to low/no light with legendary durability and reliability. Features outstanding clarity, rugged housing, always on-always ready, and 'both eyes open" design.