The Comp SR Fixed 4.5x24 with 30mm tube is built to provide the service rifle competitor maximum advantage for across the course shooting. The fixed 4.5x magnification is the maximum allowed; and with a weight of just over 15 ounces, the Comp SR Fixed 4.5x24 is a perfect partner for the scope-sighted service rifle division. Each 1/4 MOA click engages with a reassuring tactile feel and, as with every Nightforce riflescope, tracks true and without backlash. The ZeroStop feature provides a positive and repeatable return to your zero from any elevation adjustment. The parallax setting is fixed at 200 yards, which provides for a parallax free image out to 1,000.