The SCRS (Solar Charging Rifle Sight) advances Holosuns SCS technology creating an all-new, ultra compact 20mm tube sight designed for rifle applications. SCRS features multi-directional light sensors and an advanced Auto Mode for automatic reticle intensity settings and Manual Mode for manual control of dot intensity. SCRS is made from 7075 aluminum and utilizes Holosuns 509T footprint for compatibility with third party offset RDS mounts. Specifications for Holosun SCRS MRS Solar Charging Rifle Sight: Manufacturer: Holosun Color: Black Magnification: 1 x Objective Lens Diameter: 22 mm Reticle: 65 MOA Circle, 2 MOA Dot Illumination Type: LED Eye Relief: Unlimited Adjustment Click Value: 1 MOA Emitter Type: Enclosed Battery Type: Lithium Metal, CR2032 Battery Life: Unlimited hours Weight: 2.45 oz Red Dot Sights-Footprint: Not Applicable Housing/Frame Material: 7075 T6 Aluminum Storage Temperature: -40 - 70 Celsius Features of Holosun SCRS MRS Solar Charging Rifle Sight 20,000-Hour Power Reserve Multi-Sensor Auto Brightness Solar Charging Internal Battery Multiple Reticle SystemTM (MRS): 65 MOA Circle & 2 MOA Dot; 2 MOA Dot; 65 MOA Circle Parallax Free & Unlimited Eye Relief Fits Holosun 509T Footprint (Modified - Smaller in length) Package Contents: Holosun SCRS MRS Solar Charging Rifle Sight Multi Tool Lens Cloth User Manual