The Lancer Tactical Red & Green Dot Sight is an efficient way to cut the down time it takes to aim your rifle. The dot can be zeroed, meaning that, with adjustment, you will have a dot that marks where your bb will hit every single time. This fast acquisition will give you an edge over anyone not using a similar sight, making you more competitive in the fight. This sight comes with a battery and mount, meaning all you have to do is set it up and go. The cantilever mount makes the sight sit further forward on the gun, obscuring less of your field of view and allowing you to see more of what is going on around your while aiming. This sight also has two different colors, perfect for contrast in many different environments.