With over one million produced, Trijicon's Advanced Combat Optical Gunsight, better known as the ACOG has become iconic in the realm of combat optics - and for good reason, the ACOG has an unquestioned reputation for quality and reliability. The Trijicon ACOG is the official medium range weapon sight for both U.S. Special Operations Forces and the Marine Corps as well as being the optic of choice for law enforcement agencies across the country. What sets the ACOG apart from the pack is what it offers to its users, increased hit potential regardless of light conditions. This is due to the tritium/fiber optic illuminated reticle found in most Trijicon ACOG riflescopes, this automatically adjusts illumination of the reticle based on available light. With a wide array of magnification levels, reticle designs, and reticle colors available - there truly is an ACOG for every mission.Specifications: Item Condition: New Scope Weight:9.9 oz. Scope Length:5.8" Magnification Range:4x Scope Objective Diameter:32mm Turret Adjustment (Click Value):2 clicks/inch @ 100 yards Parallax Adjustment:Fixed Reticle Details:Green .223 Donut Reticle Field of View:7deg 36.8 ft @ 100 yards Exit Pupil:8.1 mm Eye Relief:1.5" Illuminated Reticle:Yes Scope Finish:Black