One of the best-selling holographic weapon sights (HWS) currently on the market, the EOTech® 518™ Holographic Sight is a performance-enhanced tactical weapon sight, designed to deliver lightning-fast target acquisition and unparalleled reliability in military and law enforcement operations, tactical drills, and other tactical environments. Aircraft-grade aluminum construction delivers consistent field performance and superior shock and corrosion resistance, while the large display window with shatterproof laminate glass lens protects against scratches, cracks, and breaks due to accidental drops, bumps, and other damages while on the move or in the field. The illuminated red dot reticle is easy to pick up for intuitive target acquisition, while 20 user-selectable brightness settings with simple push-button controls offer improved clarity and reliable field performance in virtually any lighting condition. Better yet, this 100% American-made holographic weapon sight offers up to 2,200 hours of dependable battery life on 2 alkaline AA batteries (included) and is completely submersible in water up to 10’ deep. Includes protective case. Made in USA.