Buy the Holosun SCS 320 from BattleHawk Armory! The SCS-320-GR (Solar Charging Sight) is designed for P320 optics ready handguns or other DPP footprint applications. It is designed to attach directly to the slide without an adapter plate and uses our innovative solar charging system with multi-directional light sensors to automatically adjust brightness in dynamic situations. The SCS can potentially operate indefinitely using an internal, rechargeable 20,000-hour battery meaning under even moderate exposure to bright light, you will never need to change batteries again. The SCS also includes an intensity override function which locks the optic into a high brightness mode for 30 minutes and a low power indicator which warns of low battery days before charging is needed. Optical Specs Reticle: 2 MOA Dot & 32 MOA Circle Light Wavelength: 540nm Reticel Color: Green Parallax Free: Yes Unlimited Eye Relief: Yes Magnification: 1x Multi-Coatings: Yes Electronic Specs Battery Type: Internal Rechargeable Battery Battery Life: Unlimited Brightness Setting: Auto Mechanical Specs Housing Material: 7075 T6 Aluminum Surface Finish: Anodize Adjustment per Click: 1.5 MOA W&E Travel Range: 30 MOA Enviornment Specs Storage Temperature: -40 C to 70 C Working Temperature: -30 C to 60 C Submersion: IPX8 Vibration: 5000G