2-MOA RED DOT reticle for precise aiming - 25mm multi-coated objective lens - Digital push-button brightness controls - 10 brightness settings - Remembers last used brightness setting - Includes low and high Picatinny rail mounts for maximum compatibility (AR absolute co-witness) - CNC-machined from aircraft-grade aluminum - Automatic wake / sleep modes preserve battery life for years of reliability - Waterproof / fog-proof / nitrogen gas-filled