Vortex Diamondback 4-12x40 - Dead-Hold BDC Reticle

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.

• 4-12x40 riflescope is ideal for big game, predator/varmint, muzzleloader, slug shotgun, and long range 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
Fully Multi-Coated Increases 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.

CONSTRUCTION FEATURES
Tube Size 1-inch diameter.
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 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.
Precision-Glide Erector System Uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest conditions.
Capped Reset Turrets Allow re-indexing of the turret to zero after sighting in the riflescope. Caps provide external protection for turret.

INTERNAL MECHANISM DESIGN FEATURES
Precision-Glide Erector System Uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest conditions.

CONVENIENCE FEATURES
Fast Focus Eyepiece Allows quick and easy reticle focusing.

Magnification 4-12 x
Objective Lens Diameter 40 mm
Eye Relief 3.1 inches
Field of View 32.4-11.3 feet/100 yards
Tube Size 1 inch
Turret Style Capped
Adjustment Graduation 1/4 MOA
Travel per Rotation 15 MOA
Max Elevation Adjustment 60 MOA
Max Windage Adjustment 60 MOA
Parallax Setting 100 yards
Length 12 inches
Weight 14.6 ounces