The HS507COMP handgun sight features a large 1.1" x 0.87" objective lens for enhanced shooting performance and Holosun's 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. The 507Comp is made from 7075 aluminum with an industry standard footprint, and includes Shake Awake technology. IncludedT10 L KeyUser ManualCR1632 BatteryLens Cloth FeaturesStandard RMR FootprintUp to 50,000 Hour Battery LifeShake AwakeTM Technology with Last Setting RecallEnlarged Window for Enhanced Field Of ViewCompetition Reticle System (CRS): 2 MOA Dot w/ 8/20/32 MOA Circle - Parallax Free & Unlimited Eye Relief