Holosun HE512T-RD 1x 28mm Red Dot - 2 MOA Dot & 65 MOA Circle - The HE512T-RD is an enclosed reflex optical sight designed for rifle and carbine applications. Features include a Titanium housing, Holosun's Super LED with up to 50k hours battery life, Multi-Reticle System, Solar Failsafe, and Shake Awake. MRS: Circle Dot; 2 MOA Dot; 65 MOA Circle Up to 50,000 Hours Battery Life (Setting 6) 12 Brightness Setting: 10 DL & 2 NV Compatible Convenient Tray Battery Compartment Completely Enclosed Design & Titanium Housing Parallax-free & Unlimited Eye Relief