The Ronin 507COMP handgun sight features a large 1.1'' x 0.87'' objective lens for enhanced shooting performance and Holosuns 32MOA ring with 2MOA dot MRS (Multi-Reticle System) available with a green LED. The Ronin 507COMP is engraved with the Iconic Ronin dragon logo and features stealth black on black markings. Specifications for Holosun Ronin 507COMP 1x1.1 Reflex Green Dot Sight: Manufacturer: Holosun Color: Black Emitter Type: Open Quantity: 1 Red Dot Sights-Footprint: RMR Features of Holosun Ronin 507COMP 1x1.1 Reflex Green Dot Sight Competition Reticle System Up to 50,000 Hours Battery Life (Setting 6) 8 Brightness Setting: 6 DL & 2 NV Compatible Super Large Window Convenient Tray Battery Compartment Parallax-free & Unlimited Eye Relief Package Contents: Holosun Ronin 507COMP 1x1.1 Reflex Green Dot Sight T10 L Key User Manual CR1632 Battery Lens Cloth