Vortex Viper HS-T 6-24x50 Rifle Scope. The ultimate in optics! One look is all you'll need to appreciate this Vortex Razor HD 6-24x50 Rifle Scope. Blending many of the best features from Vortex's popular Viper HS and Viper PST rifle scopes, the new Viper HS-T delivers shooting versatility for hunters, as well as tactical enthusiasts. It boasts a hashmark-based second-focal-plane reticle perfect for accurate holds at extended ranges. Incredibly precise, repeatable and durable target-style windage and elevation turrets, along with extra-low dispersion glass, top off this highly versatile Rifle Scope. Optical Features: Extra-low dispersion glass increases resolution and color fidelity which results in crisp, sharp images Premium lens coatings deliver the highest level of light transmission with multiple anti-reflective coatings on all air-to-glass surfaces for maximum brightness Construction Features: Aircraft-grade aluminum construction for strength and rigidity Single-piece tube maximizes alignment for improved accuracy and optimum visual performance O-ring seals prevent moisture, dust and debris from penetrating the Scope Argon gas purging prevents internal fogging over a wide range of temperatures Rugged, shockproof design withstands recoil and impact Hard-coat anodized finish provides a low-glare matte surface ArmorTek coating protects exterior lenses from scratches, oil and dirt Exposed tactical-style turrets provide fast, accurate and easy elevation / windage adjustments Side focus adjustment is easily accessible from a shooting position Internal Mechanism Design Features: Customizable Rotational Stop (CRS) aids in return to zero after dialing temporary elevation correction Precision-force Spring System uses premium components in the erector-spring system to ensure maximum repeatability and ease of adjustment Precision-glide Erector System uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest co