The Trijicon® MRO® Patrol 2 MOA Adjustable Red Dot Sight is a sealed reflex sight designed to deliver intuitive target acquisition and years of faithful service in any tactical or competitive shooting application. Optimized for use with rifles, carbines, and shotguns, the MRO Patrol is designed to be used with both eyes open for maximum situational awareness and superior point-and-shoot accuracy. The waterproof housing features 7075-T6 aluminum construction with a hard anodized corrosion-resistant finish to ensure long-lasting service under heavy and consistent recoil. A large aperture and tapered light path maximize the user’s viewing area for fast target engagement even when you find yourself in non-standard shooting positions. Advanced multi-coated lenses provide superior clarity and light-gathering capabilities with zero distortion for a crisp 2 MOA dot reticle. Ambidextrous brightness controls let you choose between 8 (6 daytime, 2 night-vision) brightness settings while sub-flush adjusters eliminate the risk of lost caps and snag hazards for dependable protection from inadvertent adjustments or loss of zero. Operates on 1 CR2032 battery with up to 1 year of battery life on the lowest setting. Lifetime warranty. Made in USA.