Up to 50,000 Hours Battery life Green reticle color Multiple Reticle System (MRS): 32 MOA Circle & 2 MOA Dot; 2 MOA Dot; 32 MOA Circle Solar FailSafe Shake Awake Technology Parallax Free & Unlimited Eye Relief Titanium Body The HE508T-RD is an open reflex optical sight designed for pistol 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.