The 507Comp-GR handgun sight boasts a generously-sized 1.1 x 0.87 objective lens, enhancing shooting performance. It features Holosun s innovative Competition Reticle System (CRS), powered by Holosun s 540nm Green Super LED, offering an impressive battery life of up to 50,000 hours with a CR1632 cell. The CRS is a comprehensive multi-reticle system comprising four elements: a precise 2MOA dot, an 8MOA circle, a 20MOA circle, and a 32MOA circle, featuring various combination settings to cater to individual shooter preferences. The 507Comp-GR is meticulously crafted from 7075 aluminum, adhering to industry standards, and incorporates Shake Awake technology. Product Features Shake Awake Multiple Reticle System Super LED Multilayer Reflective Glass Product Specifications OPTICAL SPECS Reticle: 2 MOA Dot & 8/20/32 MOA Circle Light Wavelength: 540nm Reticle Color: Green Parallax Free: Yes Unlimited Eye Relief: Yes Magnification: 1x Multi-Coatings: Yes ELECTRONIC SPECS Power Source: Battery Battery Type: CR1632 Battery Life (Hours): 50000 Brightness Setting: 8 DL & 2 NV PHYSICAL SPECS Window Size: 1.1 0.87 Dimension (in): 1.8 1.3 1.3 Weight (oz): 1.7 MECHANICAL SPECS Housing Material: 7075 T6 Aluminum Surface Finish: Anodize Adjustment per Click: 1 MOA W&E Travel Range: 30 MOA ENVIRONMENT SPECS Storage Temperature: -40 C~70 C Working Temperature: -30 C~60 C Submersion: IP67 Vibration: 5000G