NcSTAR strives to be your one stop source and provider of quality, affordable scopes, rings, mounts, other firearm related accessories. With 12 years of experience they have come a long way to establish themselves a crowded tactical industry. They manufacture optics that are the preferred choice of many professional users, armed forces, and civilian consumers. NcSTAR has something for everyone. NcSTAR has a Red Dot made to mount on your rail or weaver base. With 4 reticle to select from pick the one that fits your shooting and have fun. From tin cans to pest to game, get on target quickly and put a round where you need it with this Red Dot from NcSTAR. Specifications and Features: NcSTAR Red Four Reticle Reflex Optic D4RGBQ Red and Green colored Four Reticle set Dot/Bullseye/Cross/Bullseye Magnification 1X Dot Size 3 MOA Quick Disconnect Mount Objective Lens 24.0X34.0mm Lens Coating Ruby Mount Type Clamp on Weaver-Picatinny Rail Mount Length 3.2" Weight 5.3 oz. LED (Light Emitting Diode) 100% Safe for the Eyes Unlimited Eye Relief for flexible mounting 5 Brightness Settings for Each Color reticle Aluminum Construction 1 CR2032 Battery Black Anodized