Vortex Viper PST 1-4x24 Riflescope The Viper PST (Precision Shooting Tactical) riflescope boasts features associated with top-tier riflescopes, yet comes in at a street price under the $1,000 mark. Matching reticle and turret measurements allow accurate, fast dialing of shots. The one-piece 30mm tube, precision-machined from a single solid block of aircraft-grade 6061-T6 aluminum, offers ample windage and elevation adjustment. Born from an intimate understanding of riflescope design, forward-thinking engineering, and open ears to a market incredibly vocal about what it wants in a riflescope, the Viper PST series delivers the performance and features tactical shooters demand at an economical price. Optical Features Optically Indexed Lenses Deliver 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 increases resolution and color fidelity, resulting in crisp, sharp images. XR Lens Coatings Vortex proprietary XR fully multi-coated lens coatings increase light transmission for maximum brightness. Construction Features 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. Aircraft-Grade Aluminum Construction from a solid block of 6061-T6 aircraft-grade aluminum delivers increased strength and rigidity. Waterproof O-ring seals prevent moisture, dust, and debris from getting inside the tube for reliable performance in all environments. Fogproof Filled with argon gas to inhibit internal fogging over a wide range of temperatures. Shockproof Lenses are locked in place, fore and aft, with machined locking rings to remain in perfect alignment and withstand recoil and impact. Hard Anodized Finish Hard-coat anodization is durable; the low-glare matte helps camouflage the shooter’s position. ArmorTek Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt. Internal Mechanism Design Features CRS Zero Stop Customizable Rotational Stop (CRS) prevents dialing more than one rotation below your zero so you don"t lose the zero when dialing large amounts of elevation corrections. Tall Uncapped Turrets