The Sightmark SM26031DE or Ultra Shot R-Spec Reflex Sight is an impressive addition for your range practices. Boost the effectiveness with its quick target acquisition feature and enjoy an astonishingly long battery life. You can expect to get anywhere between 200 to 2,000 hours of service from a single CR123A battery.What truly sets this reflex sight apart is the array of high-quality features. It comes with a superior wide-angle lens system that is resistant to scratches and has an anti-reflective silver coating. The 4 illuminated red/green reticle options coupled with 10 brightness settings ensure topnotch visibility. With parallax correction that extends beyond 25 yards and unlimited eye relief, you get a clear, expansive field of view and unwavering reliability. Engineered for durability, the Ultra Shot R-Spec Reflex Sight can withstand shocks and weather-related wear and tear with an IP55 weather-resistant rating. It\'s designed to manage recoil up to .50 BMG and is crafted from rugged, lightweight 6061-T6 aluminum, offering it a robust body and protective shield.This device assures rapid target acquisition with 1 MOA windage and elevation adjustments, providing up to 120 MOA of travel. Benefit from the precision of its Interlock internal locking adjustment system which ensures repeatable shooting from any range, at a comfortable 1x magnification.The Ultra Shot R-Spec Reflex Sight also includes a low battery indicator, digital switch controls, 1-hour auto shut-off, and a quick-detach picatinny mount. For your convenience, adjustment tools, a CR123A battery, and a neoprene cover are included.