EOTech Holographic Sights feature a heads up design that allows both eyes to be open in order to maintain peripheral vision and depth perception while shooting. Perfect for anyone that doesn't like to sacrifice. The 558 is compatible with all Gen-I-III night vision devices and features an adjustable, locking quick detach mount that offers instant removal and attachment that will hold zero to 1MOA. The operational buttons are located on the side of the sight making this optic ideal for use with EOTech switch-to-side magnifiers. The drop-in replacement Laser Battery Caps (LBC and LBC2) are designed to work with this model as well, increasing your aiming capabilities and speed to target all day and night long. Notes:Auto Battery Check Indicator: Flashing reticle upon startup if batteries are at 20% of battery life.Auto Shutdown: At 8 hours programmable to 4 hoursRevision F ElectronicsRubberized Input ButtonTwo year manufacturer's warranty from date of purchaseFeaturesNight Vision-Compa...