BARSKA 4-16x50 IR AO Excavator Target Dot Riflescopebr Riflescope with 11 rheostat brightness settings specifically designed for big game hunting and long-range target and varmint hunting br 4-16X magnification 50-millimeter objective lens and one-inch tube diameter 199-foot field of view at 100 yards at 4X and 58-foot field of view at 100 yards at 16X 125-to-31-millimeter exit pupil and 35-inch eye relief br 146-inch length and 208-ounce weight 0125-inch click value on adjustment knobs for windage elevation and rheostat fully multi-coated optics and infrared target dot reticle water- fog- and shock-proof black matte finish br Comes complete with flip-up scope caps a three-inch sunshade two mounting rings a lens cloth and battery br Includes limited lifetime manufacturers warranty