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VIPER 3-9X40 RIFLESCOPE Effortlessly shrugging off recoil, moisture and darkness! The Viper's status as a premium riflescope won't be as easy to shake. Discover a riflescope with incredible performance features like premium, fully multi-coated optics with 95 percent light transmission, heavy duty Precision Force spring systems and the glass smooth Precision Glide erector system—delivering all this and more at a price that should have pulled a few more hundreds from your wallet than it did. 3-9x40 riflescope is ideal for big game, muzzleloader, and slug shotgun applications. Dead-Hold BDC reticle has a customized design that helps eliminate guesswork on hold-over and windage corrections. Good for any hunting or shooting at varying ranges where estimating hold-over would be a concern. OPTICAL FEATURES 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 One-Inch Tube Standard tube diameter for most American riflescopes. One-Piece Tube Maximizes strength and waterproofness. Aircraft-Grade Aluminum Premium grade of aluminum, valued for fatigue resistance. Precision-Force Spring System Uses premium components in the erector-spring system, ensuring maximum repeatability and ease of adjustment. Precision-Glide Erector System Uses premium components in the zoom lens mechanism, ensuring smooth magnification changes under the harshest conditions. Waterproof Optics are sealed with o-rings to prevent moisture, dust, and debris from getting inside the binocular. Fogproof Barrels are filled with argon gas to inhibit internal fogging. 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. CONVENIENCE FEATURES MAG-View Bar Permits quick and easy adjustment of magnification range—even under the coldest conditions. Fast Focus Eyepiece Allows quick and easy reticle focusing. Low Capped Turret Is less susceptible to accidental impact damage. Quick Reset Turrets Allow quick re-indexing of the turret housing to zero after sighting in the riflescope—re-index with fingers alone (no tool needed). Magnification 3-9 x Objective Lens Diameter 40 mm Eye Relief 3.50 inches-3.70 inches Field of View 35.5-12.2 feet/100 yards Tube Size 1 inch Turret Style Low Capped Adjustment Graduation 1/4 MOA Travel per Rotation 12 MOA Max Elevation Adjustment 92 MOA Max Windage Adjustment 92 MOA Parallax Setting 100 yards Length 12.4 inches Weight 14.2 ounces Product Manual (PDF) Download Product Manual 2 (PDF) Download DEAD-HOLD BDC RETICLE (MOA) Customized dot design helps eliminate guesswork on holdover and windage corrections. Good for hunting/shooting at varying ranges where estimating holdover is a concern.