The Burris FastFire IV Multi-Reticle Red Dot Sight is a compact optic that comes packed with features. Compatible with rifles, shotguns, and pistols, the FastFire IV allows the user to choose between four distinctive reticles that have been optimized for different ranges, applications, and host weapons. These reticles include a 3 MOA dot for an unobstructed view of the target, an 11 MOA semi-circle/dot ideal for close-range use like turkey or slug-guns, an 11 MOA semi-circle/cot and 42 MOA circle for personal defense, and a 3 MOA dot and 42 MOA circle for mid-range accuracy. The FastFire IV also offers a long battery life of up to 26K hours, and features an auto-shutoff after 8 hours to preserve battery life. Features of the FastFire IV Multi-Reticle Red Dot Sight: Toggle between four different reticle optionsLarger sight window for faster target acquisitionLonger battery life - up to 26k hours on medium brightnessBrighter aiming pointOptional screw-on weather shield for a completely enclosed sightAuto-Brightness & Auto-shutoff after 8 hoursNote: Mounting screws not included Burris FastFire IV Multi-Reticle Red Dot Sight 300259