The tactical dot Konusight is not your traditional dot sight. It features four interchangeable dual (red/green) illuminated reticle patterns. Outer Circle Diameter with Center Dot 40 MOA with 4 MOA Center Dot. Outer circle Diameter with empty center 20 MOA. Features three different intensities in each color. Includes a dual mount that fits a standard style base, suitable for 7/8" and 3/8" grooved receivers such as those used on 22's. The knurled eyepiece and the finger adjustable, tactical windage and elevation knobs offer form and function in one complete unit.