"The Vortex Optics Viper HS-T 6-24x50 Riflescope with VMR-1 MRAD Reticle is designed to be a versatile scope for use in the field, on the range and for tactical operations with medium to long-range targets. All of the scope's glass is made with XD extra-low dispersion glass and are XR antireflective fully multicoated to produce images that are bright and clear, with true color representation without distortion, across the entire field of view. Its large objective lens is ideal for use in low-light conditions such as at dawn and dusk when many game animals are most active. The 30mm main-tube is made from a single piece of aluminum. A matte-black hard anodized finish reduces reflection off the scope body and resists scratching and corrosion. It's argon-filled for water and fogproof performance in all weather conditions. Adding to the HS-T's versatility is the modified duplex VMR-1 MRAD reticle situated on the second focal plane. This utilitarian reticle has thick outer posts and thin center hairs with MRAD hash-marks on both axes for ranging, hold-over and shot correction. The lower vertical post is shorter to provide a longer elevation range.|XD Lens Elements: Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images|XR Fully Multi-Coated: Proprietary coatings increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces|Second Focal Plane Reticle: Scale of reticle maintains the same ideally-sized appearance. Listed reticle subtensions used for estimating range, holdover and wind drift correction are accurate at the highest magnification|Single-Piece Tube: Maximizes alignment for improved accuracy and optimum visual performance, as well as ensures strength and waterproofness|Aircraft-Grade Aluminum: Constructed from a solid block of aircraft-grade aluminum for strength and rigidity|Waterproof: O-ring seals prevent moisture, dust and debris from penetrating for reliable performance in all environments|Fogproof: Argon gas purging prevents internal fogging over a wide range of temperatures|Shockproof: Rugged construction withstands recoil and impact|Hard Anodized Finish: Highly durable low-glare matte finish helps camouflage the shooter's position|ArmorTek: Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt|Exposed Tactical-Style Turrets: Provide fast, accurate and easily read elevation and windage adjustments|Side Focus: Adjustment located on riflescope's left side and is easily accessible from shooting position. Provides optimal image focus and parallax removal|CRS Zero Stop: 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 conditions|MAG-View Fiber Optic: Provides a highly visible reference point for the magnification setting|Radius Bar: Fiber optic turret rotation indicator provides a highly visible and tactile point of reference for turret rotations|Fast Focus Eyepiece: Allows quick and easy reticle focusing"