The Holosun HE507K-GR X2 Green Reflex Sight delivers superior performance for subcompact pistol applications, enhancing your shooting experience.With cutting-edge Lock Mode technology and a powerful Green Super LED, it ensures long-lasting reliability and precision targeting. The robust design features a side-mounted battery tray for effortless maintenance.Circle Dot, 2 MOA Dot, 32 MOA Circle Reticle OptionsUp to 50,000 Hours Battery Life (Setting 6)12 Brightness Settings: 10 Daylight & 2 Night Vision CompatibleConvenient Side-mounted Battery CompartmentParallax-free & Unlimited Eye ReliefDesigned for CCWElevate your shooting accuracy with the HE507K-GR X2, the ultimate choice for firearm enthusiasts.