Includes: T10 L Key User Manual CR1632 Battery Lens Cloth 507Comp-RD handgun sight features a large 1.1'' x 0.87'' objective lens for enhanced shooting performance and Holosun’s new Competition Reticle System (CRS) with Holosun’s 650nm Red Super LED and up to 50k hour battery life with a 1632 cell. CRS is an enhanced multi-reticle system with four components including a precision 2MOA dot, an 8MOA circle, 20MOA circle, and 32MOA circle with multiple combination settings to suit individual shooter preference. 507Comp-RD is made from 7075 aluminum with an industry standard footprint, and includes Shake Awake technology. Specifications Brand: Holosun Manufacturer part #: HS507COMP UPC: 810047072928 Category: Optics › Pistol & Rifle Sights Shipping weight: 0.47 lb Country of origin: CN Ships fast from GunCycle — free economy shipping on orders $99.99+.