Built to fit the demanding needs of precision shooters, the Vortex Razor HD is an optimum long-range scope which features an apochromatic objective lens system, HD glass, XR fully multi-coated lenses for maximum light transmission, glass-etched reticle, one-piece aircraft grade aluminum tube, argon gas purging, o-ring seal, ArmorTrek scratch-resistant coating, exposed tactical-style turrets, side focus, Rapid Zero Return Zero Stop, Mag-view fiber optic, and a fast focus eyepiece.