Hi-Lux Optics Enclosed Reflex Red Dot Sight 1x 20x16 mm Multiple Reticle Matte Black Small. With a fully sealed housing and RMSc footprint its designed to keep dirt moisture and debris out of the emitter channelso your optic stays ready no matter the conditions. Whether you're drawing from concealment or reholstering on the move its ultra-slim 20x16mm window keeps your presentation snag-free. Lightweight rugged and optimized for concealed carry the TD-3E delivers reliable performance without compromiseon your terms every single day. Specifications for Hi-Lux Optics TD-3E Enclosed 1x 20x16 mm Reflex Red Dot Sight: Manufacturer: Hi-Lux Optics Color: Matte Black Fabric/Material: Stainless Steel 7075-T6 Aluminum Magnification: 1 x Objective Lens Diameter: 16 mm Objective Window Size: 20x16 mm Reticle: Multiple Illumination Type: LED Illumination Color: Red Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Enclosed Lens Material: Aspherical Battery Type: Lithium Metal CR1620 Battery Life: 50000 hours Operating Temperature: -40 - 60 Celsius Length: 1.6 in Width: 0.98 in Height: 0.98 in Weight: 1.5 oz Red Dot Sights-Footprint: RMSc Base/Mount Type: Top Mount Lens Type: Aspherical Features of Hi-Lux Optics TD-3E Enclosed 1x 20x16 mm Reflex Red Dot Sight Enclosed Emitter Design Fully sealed to prevent water dust and lint from interfering with the emitterideal for daily carry. RMSc Footprint Mounts directly to most slimline pistols and factory-cut concealed carry handguns. Compact 20x16mm Window Designed to sit nearly flush with your slide for a smooth snag-free draw. Multi-Reticle Options Switch between 3 MOA dot 36 MOA circle-dot or circle-only reticles based on your preference or shooting environment. Shake Awake Activation Automatically powers on with motion; turns off when still to extend battery life. 7075-T6 Aluminum Housing Lightweight and tough enough for daily use and concealed carry rigors. Stainless Steel Shroud Added protection from bumps drops and holster wear. Recoil Rated to 1800Gs Built to hold zero even on subcompact pistols with stout recoil. Wide Temperature Range Operates reliably from -40C to 60Cwhether you're carrying in summer heat or winter cold. Side-Loading CR1620 Battery No need to remove or re-zero the optic to swap batteries; up to 50000 hours of life. 1 MOA Click Adjustments Dial in precision with simple no-fuss windage and elevation tuning. Aspherical Lens Crisp distortion-free sight picture. Integrated Backup Sights Rear notches milled in the housing serve as passive backup sights. Package Contents: Hi-Lux Optics TD-3E Enclosed 1x 20x16 mm Reflex Red Dot Sight 6-32 Screws M3 Screws M4 Screws Hi-Lux Optics TD-3E: TD-3E Enclosed Reflex Red Dot Sight 1x 20x16 mm Multiple Reticle Matte Black Small