Vortex Optics

Vortex Diamondback 4-12X40 BDC Rifle Scope

RRP: $535.00
Price: Sale: $519.00
(You save $16.00 )

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The Diamondback is loaded with features! First, the solid one piece aircraft grade aluminium alloy construction makes the Diamondback riflescope virtually indestructible; it is highly resistant to magnum recoil. Argon purging puts waterproof and fogproof performance on the agenda, and advanced fully multi-coated optics raise the stakes when crystal clear, tack sharp images appear in the crosshairs. Look for all this and more in a riflescope that you would 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 (MOA) Customized hash mark design helps eliminate guesswork on hold over and windage corrections. Good for hunting/shooting at varying ranges where estimating hold over is a concern.

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 alignment for improved accuracy and optimum visual performance as well as strength and water resistance
  • Aircraft Grade Aluminium - Premium grade of aluminium, 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 Profile Turrets - 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 - O-ring seals prevent moisture, dust, and debris from getting inside the tube, ensuring reliable performance in all environments
  • Fogproof - Filled with argon gas to inhibit internal fogging


  • Magnification - 4-12X
  • 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 - 305mm (12")
  • Weight - 415g (14.6oz)


Additional Details

Objective Lens Diameter:
Eye Relief:
Field of View:
32.4-11.3 feet/100 yards
Tube Size:
Turret Style:
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 (mm):
Weight (g):

1 Review

  • 5
    Quality and service

    Published by John P on 10th Apr 2023

    Thanks to Justin product options were fully explored and presented . Similarly supply delays were explained up front . Delivery dates and tracking info were provided as they became available Well done Justin & Outdoors Warehouse for you prompt and honest services

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