Integrated electronic ballistic computer that attaches directly to a riflescope. BORS measures air temperature, barometric pressure and inclination to calculate the ballistic solution for the specified caliber and cartridge. Eliminates the need to count clicks as the distance is shown on the LCD screen. Model fits the Nightforce 3.5-15x NXS. Includes Zero Gap Ultra High 30mm rings, Ballistic Software CD, interface cable, battery and mounting tools. Scope not included.