The Barska 2.5-15X56mm AR6 Riflescope is a highly developed large caliber rifle scope designed for the intense recoil and high impact of .308, .30-6 and .50 caliber rifles. Accu-Lock stabilizing system, side adjustable parallax turret, wind-age and elevation turrets with a 1/4 MOA click value are built into this rifle scope. The rifle scope offers a 1 in. single-tube construction with a 6x magnification technology providing a wider magnification range of intervals of 6x. With large 56 mm objective furnishing, this rifle scope is high impact rated, shockproof, waterproof and fog proof for rugged, all-weather protection.