THE HS507Comp-RD handgun sight features a large 1.1 x 0.87 objective lens for enhanced shooting performance and Holosuns new Competition Reticle System (CRS) with Holosuns 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. IP67 waterproof.