The EOTech Holographic Weapon Sight, Non-Night Vision Compatible is a high-performance optic built to enhance your aiming capabilities at no cost to comfort. EOTech designed these Holographic Red Dot Sights with side-button functionality which allows you to maximize rail space if you want to add other attachments like a magnifier for hitting distant targets. This EOTech 518 68 MOA Ring Holographic Sight offers 20 brightness settings so that you can precisely customize your reticle to match your current lighting conditions and target background. These sights are also water-resistant for use in rainy weather. Equip an EOTech Model 518 Holographic Sight to amplify your accuracy and target acquisition speed with your favorite firearm. Specifications for EOTech Holographic Non-Night Vision Weapon Sight: Manufacturer: EOTech Color: Black Magnification: 1 x Objective Lens Diameter: 0.85 in Reticle: 68 MOA Ring w/ Single 1 MOA Dot Illumination Type: Holographic Illumination Color: Red Eye Relief: Unlimited Adjustment Type: MOA Adjustment Click Value: 0.5 MOA Field of View, Linear: 30 yds at 4 in Attachment/Mount Type: MIL-STD 1913, Weaver Battery Type: AA Battery Quantity: 2 Battery Life: 2200 Hours Alkaline Batteries, 2500 Hours Lithium Batteries Operating Temperature: -4 - 122 Fahrenheit Water Resistance Level: Submersible Water Resistant Mark: 10 ft, 3 m Height: 2.5 in Weight: 13.8 oz Quantity: 1 Fit: MIL-STD-1913 rail/1in Weaver Package Type: Polymer hard case Magnification Type: Fixed W/E Travel at 100 Yds: 0.5 MOA Features of EOTech Holographic Weapon Sight, Non-Night Vision Compatible: Side button functionality Compatible with the new drop-in Laser Battery Caps that EOTech designed Water Resistant: Submersible to 10 ft. (3 m) depth Mount: 1in Weaver or MIL-STD-1913 rail Brightness: 20 daylight settings Package Contents: EOTech Holographic Non-Night Vision Weapon Sight