The HS507COMP handgun sight features a large 1.1" x 0.87" objective lens for enhanced shooting performance and Holosun's new Competition Reticle System (CRS) available with a red LED. 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's preferences. Up to 50,000 Hour Battery Life Shake AwakeTM Technology with Last Setting Recall Enlarged Window for Enhanced Field Of View Competition Reticle System (CRS): 2 MOA Dot w/ 8/20/32 MOA Circle Parallax Free & Unlimited Eye Relief Mfg: Holosun