The Trijicon MRO (Miniature Rifle Optic) SD is a sealed, miniature reflex sight intended for use on rifles, carbines, and shotguns to provide fast target acquisition. The MRO SD maintains the same durability and footprint of the original MRO with an enhanced optical design for pairing with magnifiers and night vision devices. The MRO SD features a reengineered objective lens with advanced lens coatings that delivers a refined, crisp 2.0 MOA center dot, optimized for seamless use with the optional MRO 3x Magnifier. The MRO SD is also equipped with upgraded windage and elevation adjusters for improved zero retention under direct impact and heavy recoil, ambidextrous brightness controls, and a fully sealed, waterproof, hard-anodized forged 7075-T6 housing. Product Features Faster target acquisition Ambidextrous brightness control Easily adjustable brightness settings Built to handle the worst Recessed adjusters Superior quality glass lenses Long-lasting power 5 Year warranty Enhanced optical performance Improved windage and elevation Product Specifications Magnification: 1x Reticle Patter: 2.0 MOA Dot Night Reticle Color: Red Power Source: 1 CR2032 Lithium Battery Adjustment: 1/2 MOA Per Click Eye Relief: Infinite in. Housing Material: 7075-T6 forged aluminum Weight: 4.8 oz. (136.08g) Objective Size: 25mm Illumination Settings: 8