The 30mm Red dot sight from Barska provides fast target acquisition, pinpoint accuracy and a wide field of view. This illuminated dot sight is perfect for use with rifles, handguns, shotguns, and even crossbows. The 30mm dot sight has a Red 5 MOA reticle and a finger adjustable rheostat allowing variable reticle brightness control. Complete with anti-reflective coating, Unlimited eye relief, and multicoated optics, the 30mm Red dot sight from Barska provides optimum performance at an unbeatable price. Features: 1x magnification 30mm objective lens 5 MOA Red dot reticle dual-size mount adjustable reticle brightness windage and elevation turrets black matte finish Weaver style base..