Vortex Diamondback Tactical, 4-12×40 with VMR-1 Riflescope

• Magnification:  4-12 x
• Objective Lens Diameter:  40 mm
• Eye Relief:  3.8 inches
• Field of View:  23.6-7.9 feet/100 yards
• Tube Size:  1 inch
• Turret Style:  Tactical
• Adjustment Graduation:  1/4 MOA
• Travel per Rotation:  12 MOA
• Max Elevation Adjustment:  70 MOA
• Max Windage Adjustment:  70 MOA
• Parallax Setting:  100 yards
• Length:  14.2 inches
• Weight:  16.2 ounces

Vortex Diamondback Riflescope Overview, Copyright Vortex USA

Optical Features

XD Lens Elements

• Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images.

XR 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.

Exposed Tactical Turrets

• The Diamondback® Tactical scopes feature tactical windage and elevation turrets with Zero Reset making adjustments back to zero easy and quick.

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.

Fibre Optic Radius Bar    

• The patented fiber optic Radius Bar visually assists tracking turret rotations.

Magnification Rib

• The raised rib on the magnification ring facilitates fast magnification changes in the heat of action.