The Lancer Tactical red/green dot sight allows you to quickly acquire your target through a very clear sight picture. Using a red dot sight allows for faster target acquisition because you no longer need to line up your iron sights to take aim. Once sighted in, the dot will always be on target. This reflex sight is made of full metal construction. The sight has four different reticles in red or green. Adjustable for windage and and elevation. Mounts to standard weaver/picatinny rails.