*Sight features a bright 3.5 MOA red dot reticle for easy target acquisition*The compact, snag-free design ensures this sight won't slow you down when using your long gun*The battery can be changed without removing the optic or affecting the zero for practical use in the fieldThe CTS-1300 open red dot sight for rifles and shotguns has been designed for easy acquisition and rapid engagement of close to medium range targets. The sight boasts a crisp 3. 5 MOA round aiming dot with a high efficiency LED for years of use.