Vortex Diamondback 4-12x40 AO Rifle Scope - Dead-hold BDC Reticle. Model: DBK-412B

The Diamondback?loaded with features! First, the solid one-piece aircraft-grade aluminum alloy construction makes the Diamondback riflescope virtually indestructible and highly resistant to magnum recoil. Argon purging puts waterproof and fogproof performance on the agenda, and advanced fully multi-coated optics raise an eyebrow when crystal clear, tack-sharp images appear in the crosshairs. Look for all this and more in a riflescope you'd expect to cost quite a bit more-but doesn't. We can live with that. OPTICAL FEATURES: -Fully Multi-Coated Lenses Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces. 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-Glide Erector System Uses premium components in the zoom lens mechanism, ensuring smooth magnification changes under the harshest conditions. -Fast Focus Eyepiece Allows quick and easy reticle focusing. -Low Capped Turrets Is less susceptible to accidental impact damage. -Reset Turrets Allow re-indexing of the turret housing to zero after sighting in the riflescope-generally requires use of a coin or wrench. -Waterproof Optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the binocular. -Fogproof Barrels are filled with nitrogen gas to inhibit internal fogging. SPECS: -Magnification 4-12 x -Objective Lens Diameter 40 mm -Eye Relief 3.1-3.4 inches -Field of View 32.4-11.3 feet/100 yards -Tube Size 1 inch -Turret Style Low capped -Adjustment Graduation 1/4 MOA -Max Elevation Adjustment 60 MOA -Max Windage Adjustment 60 MOA -Parallax Setting 10 yards to Infinity -Length 13.1 inches -Weight 14.9 ounces