Holosun 507 Competition - Competition Reticle System Red Dot Reflex Sight The HS507Comp-GR is an open reflex optical sight designed for concealed carry pistol applications. This Holosun 507 Competition is compatible with our M.R.A. red dot adapter. The 507Comp-GR 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 540nm Green 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-GR is made from 7075 aluminum with an industry standard footprint, and includes Shake Awake technology. Features: Three Operational Modes: Auto, Manual, Lockout Competition Reticle System: 2MOA dot, an 8MOA circle, 20MOA circle, and 32MOA circle Shake Awake - Motion on with last setting recall Parallax free, unlimited eye relief CNC milled 7075 Aluminum Housing 6 day light and 2 night vision compatible brightness settings Window Size: 1.1x0.87 inches IP67 Certified Specifications for Holosun HS507Comp-GR: OPTICAL DATA Reticle: 2MOA dot, an 8MOA circle, 20MOA circle, and 32MOA circle with multiple combination settings Reticle Color: Green Parallax Free: Yes Unlimited Eye Relief: Yes Magnification: 1x Multi-Coatings: Yes PHYSICAL DATA Window Size: 1.1x0.87 Dimension (in): 1.8x1.3x1.3 Weight (oz): 1.7 MECHANICAL DATA Housing Material: 7075 T6 Aluminum Surface Finish: Anodize Adjustment per Click: 1 MOA W&E Travel Range: 30 MOA ENVIRONMENT DATA Storage Temperature: -40~70 Working Temperature: -30~60 Submersion: IP67 Vibration: 5000G MSRP: $470.00 Red Dot Optics are not manufactured by OuterImpact and as such; any warranty issues will need to be addressed directly with the optics manufacturer. OuterImpact only offers an exchange or refund if the optic is returned to us unopened.