The Crimson Trace CTS-1300 Electronic Sight is a compact open reflex sight for rifles and shotguns. The 3.5 MOA round aiming dot featured will elevate your long gun's performance instantly. Installation is easy with an industry standard mounting system similar to Vortex Venom and Viper models, Docter, and Burris Fastfire sights. The CTS-1300 also includes a low-profile M1913 Picatinny mount. This reflex sight also comes with Crimson Trace's 3 Year Limited Warranty and a part of the Free Batteries for Life Program. Features of CTS-1300 Compact Open Reflex Sight3.5 MOA Round Aiming DotAircraft Grade Anodized Aluminum MaterialExternally Accessible Battery CompartmentAdjustment Range: >100 MOA; Adjustment Graduation: 1 MOA7 Levels of BrightnessLow-Profile, Snag-Free DesignHigh Efficiency LED for Years of Maintenance-Free UseIndustry Standard Mounting InterfaceIncludes Low-Profile M1913 Picatinny MountShock, Dust, Impact, Fog, and Recoil ResistantWarranty: 3 Year Limited Warranty and FREE Batteries for Life guarantees a lifetime of performanceDownloads Crimson Trace Product Catalog Download Crimson Trace CTS-1300 3.5 MOA Compact Open Reflex Sight for Rifles & Shotguns, Electronic Sight with External Battery Compartment, Mount Included