The Buckmasters rangefinder will provide lightning fast ranging performance in a vivid red illuminated display optimized for low light hunting. As an extra value"" the rangefinder can be used in Buckmasters Mode which comes equipped with 8 onboard ballistic groups"" so the rangefinder can indicate which Buckmasters BDC holdover dot to use in your riflescope. Paired with the 4-16x44mm Buckmaster riflescope"" this combination will guarantee first round hits every time!