Holosun Technologies SCS, Green Dot Sight, Non-Magnified, 2 MOA Dot, Anodized Finish, Black, Solar with Internal Battery SCS-CARRY-GR The SCS-CARRY (Solar Charging Sight) is a direct attachment optic for slim, carry-sized sub-compact handguns. It is designed to attach directly to HOLOSUN-K slide cuts, or to RMSc cut slides with the included adapter plate. The SCS-CARRY uses their innovative solar charging system with multi-directional light sensors to automatically adjust brightness in dynamic lighting situations. The SCS can potentially operate indefinitely with its internal, rechargeable 20,000-hour battery.