552 Style Tactical "Holo" Style Red Dot Sight with Red and Green Illumination for Airsoft Choose between red and green colors and multiple levels of brightness to adjust to any situation! Fully adjustable for windage and elevation. Durable Aluminum and Polymer Build that is Shock and Water Resistant. Mounts on any standard 20mm Picatinny Rail NEW VERSION with a Sharper and Brighter Reticule