Nikon Prostaff 3-9x40mm Scope High-quality yet affordable riflescope with 3x to 9x magnification and 40mm objective diameter Multicoated optics deliver up to 90 percent light transmission; 100 percent waterproof and fogproof Repeatable 1/4 MOA reticle adjustments; 33.8- to 11.3-foot field of view at 100 yards Attractive silver finish; 1-inch tube diameter; parallax setting of 100 yards Measures 12.3 inches long and weighs 13.7 ounces; Nikon lifetime warranty