The Viper PST Gen II hands an unfair advantage to shooters who seek to keep the upper hand in every situation from close quarters to long-range shots. The illumination dial is cleanly integrated into the side focus adjustment knob for easy access and streamlined performance. The glass-etched reticle offers shooters highly functional, intuitive, and detailed hold points, yet remains uncluttered for optimal viewing and features 10 intensity levels with off positions between each setting.SpecificationsSKU: VT-PST-5259Magnification: 5 25Objective Lens Diameter: 50 mmEye Relief: 3.4 inchesField of View: 24.1 4.8 feet/100 yardsTube Size: 30 mmTurret Style: Tactical – RZR Zero StopAdjustment Graduation: .1 mradTravel per Rotation: 10 mradMax Elevation Adjustment: 20 mradMax Windage Adjustment: 10 mradParallax Setting: 25 yards to infinityLength: 16 inchesWeight: 31.2 ouncesRiflescope Manual (.pdf) – Download PDFReticle Manual (.pdf) – Download PDFOptical FeaturesXD Lens Elements Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp imagesXR Fully Multi-Coated Proprietary coatings increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.First Focal Plane Reticle Scale of reticle remains in proportion to the zoomed image. Constant subtensions allow accurate holdover and ranging at all magnifications.Glass-etched Reticle Protected between two layers of glass for optimum durability and reliability.Illuminated Reticle Provides precise aiming under low-light conditions.Construction FeaturesTube Size 30 mm diameter provides maximized internal adjustment and strengthSingle-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 the riflescope 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.Tactical-Style Turrets Exposed turrets provide fast, accurate and easily read elevation and windage adjustments.Internal Mechanism Design FeaturesRZR Zero Stop Zero Stop mechanism prevents the turret from dialing below sight-in range.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.Convenience FeaturesRadius Bar Fiber optic turret rotation indicator provides a highly visible and tactile point of reference for turret rotations. US Patent 7,937,879Fast Focus Eyepiece Allows quick and easy reticle focusing.Built-In Accuracy Features Matching mrad turrets and reticles facilitate fast and accurate shooting at extended ranges. The patented fiber optic Radius Bar visually assists tracking turret rotations. US Patent 7,937,879