PRODUCT FEATURES A The Lightest Rugged Metal Red Dot Sight at Just 19g / 0.67oz, Low Profile with a Standard Window A Multi-Reticle Options with 3MOA Dot, Crosshair, and Circle for Fast Acquisition and Precise Shooting A Motion Sensor with Auto Shut-Off, 8 Daylight & 2 NV Brightness Levels for Efficient Power Use SPECIFICATIONS Specification Details Magnification: N/A Window Lens Size: 17x24 mm Parallax: Free ( 45 MOA Windage Adjustment Range: >45 MOA Footprint: MGT Mounting Rail: Weaver Illumination Setting: 8 Daytime & 2 Night Vision Battery Type (Not Include): CR2032 Battery Life: Up to 20,000 hours Battery Placement: Bottom Waterproof: IPX6 Shockproof: 1000 G Working Temperature: -20~+55Adeg C Housing Material: 6061-T6 Aluminum Alloy Mount Material: 6061-T6 Aluminum Alloy Finish: Matte Black Weight (Net): 19 g / 0.67 oz ( Without Mount ) Items in the Package: Weaver Mount, Rubber Lens Cover, Hex Keys, Screws and Cleaning Cloth, etc. VIDEOS