TruGlo True-Brite Open Red-Dot Sight - Dual color reticle illumination in red and green for contrast against any background/target. Four reticle choices for these Red Dot Sights 2.5 MOA, 5 MOA Dot, 2.5 MOA Center Dot, 5 MOA Center Dot. Adjustable rheostat for brightness control. Water and shock resistant. Click windage and elevation adjustment. Wide field of view. 24x34mm window for ultra-fast target acquisition. Anti-reflection coating on the target side. parallax free from 30 yards. Integrated Weaver-style mounting system. 3V-CR2032 battery included Specifications for TruGlo True-Brite Open Red-Dot Sight TG8380B: Manufacturer: TruGlo Color: Black Fabric/Material: Aluminum Magnification: 1 x Objective Window Size: 24x34 mm Reticle: 2.5 MOA Dot, 5 MOA Dot, 2.5 MOA Center Dot, 5 MOA Center Dot Illumination Color: Red, Green Emitter Type: Open Battery Type: CR2032 Battery Quantity: 1 Water Resistance Level: Water Resistant Shockproof: Yes Magnification Type: Fixed Quantity: 1 Red Dot Sights-Footprint: Not Applicable Mount Type: Weaver Gun Rail: Weaver Package Contents: TruGlo True-Brite Open Red-Dot Sight TG8380B The TruGlo True-Brite Open Red-Dot Sight TG8380B is a quality addition to the TruGlo lineup. For more great deals on Red Dot Sights by TruGlo, please browse our TruGlo Red Dot Sights & Accessories page.