The Bushnell R3 4-12x40mm rifle scope features the innovative DOA Quick Ballistic reticle for accurate long-range shooting with variable 4-12x magnification and a 40mm objective lens for clear target acquisition.Bushnell R3 4-12x40mm rifle scopeDOA Quick Ballistic reticle for precise holdover pointsVariable 4-12x magnification power40mm objective lens diameter1-inch tube diameter with black matte finishField of view: 27.8-9.4 feet at 100 yardsWeighs 17.8 ouncesIdeal for hunting and tactical applications this scope combines reliable optics with ballistic compensation technology for improved accuracy at extended ranges.