The HE508T-GR-V2 is an open reflex optical sight designed for pistol applications. Features include a Titanium housing, Holosun’s Super LED with up to 100k hours battery life, Multi-Reticle System, Solar Failsafe, and Shake Awake. FeaturesMultiple Reticle System (MRS): 32 MOA Circle & 2 MOA Dot; 2 MOA Dot; 32 MOA CircleTitanium BodyUp to 100,000 Hours Battery Life (Setting 6)Parallax-free & Unlimited Eye ReliefSolar FailsafeShake AwakeIn the Box: Picatinny MountT10 L KeyLens ClothUser ManualCR1632 Battery Holosun HE508T-GR-V2 Titanium Multi-Reticle Green Circle Dot Open Reflex Sight w/ Solar Failsafe and Shake Awake - HE508T-GR-V2