Optically Indexed Lenses: Delivers optimum image sharpness and brightness with true reticle use for full ranging and holdover from edge to edge because of computer-controlled alignment during construction.
XD Lens Elements: Extra-low dispersion (XD) glass enhances resolution, color and contrast.
XR Lens Coatings: Vortex XR proprietary anti-reflection lens coatings increase light transmission with multiple coatings on all air-to-glass surfaces.
30 mm Tube: Provides greater strength and wider adjustment latitude as compared to a 1-inch tube.
One-Piece Tube: Maximizes alignment for improved accuracy and optimum visual performance as well as strength and waterproofness.