The Trijicon MRO HD features a large aperture maximizing the viewing area, allowing for better situational awareness and fast target engagement. It also features ambidextrous brightness controls, sub-flush adjusters, advanced lens coatings, and a fully sealed, waterproof, hard anodized forged 7075-T6 housing, making the MRO the ultimate mini reflex sight. Refined 2.0 MOA center aiming dot with 68 MOA reticle EASY-TO-USE Ambidextrous brightness setting controls User-selectable dot only or full reticle aiming solution Tethered battery cap TRUSTED DURABILITY Waterproof to 100 ft / 30m Forged 7075 aluminum housing IMPROVED ACCURACY Mfg: Trijicon