Precision Machined from 6061-T6 Aluminum and Finished in a Matte Black Anodization. Red 4.0 MOA Single Dot with 8 Brightness Intensity Settings. Manual or Automatic Dot Brightness Intensity Adjustment via Surrounding Light Sensor. Side Loading Battery Compartment, No Longer Necessary to Remove Sight and Re-zero when Replacing Battery. 15,000+ Hours Battery Life at Middle Brightness Setting. Crisp 1 MOA per Click Adjustment. Large FOV Multi-coated Glass LensIPX7 Waterproof Rated. Includes Removable Low Profile Picatinny Mounting Base. Mounting Base Interface Uses the Common RMR Footprint. Optic Height Co-witnesses with Most Suppressor Height Iron Sights. Tertiary Aiming Point Laser Engraved on Rear Face of Optic Hood. Compatible with Most Optics Ready Pistol Systems