Vortex Diamondback 4-12x40 Rifle Scope

« View all Rifle Scopes
Product Reviews: 5 star review (4)

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

Price £189.99
In stock
Log in to add to Wish List

Product Details

Manufacturer code: DBK-04-BDC     |     Our code: 123871

Vortex Diamondback 4-12x40 AO Rifle Scope. 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. 


  • 4-12x40 riflescope is ideal for big game, predator/varmint, muzzleloader, slug shotgun, long range, and target applications.


  • 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.


  • Tube Size: 1inch 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 quick re-indexing of the turret (no tool needed) to zero after sighting in the riflescope. Caps provide external protection for turret.


  • Precision-Glide Erector System: Uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest conditions.


  • Fast Focus: Eyepiece Allows quick and easy reticle focusing.

Available Reticles:

Reticle Dead Hold BDC

Reticle Dead Head BDC



Product Specification

Tube Diameter 25mm
Magnification 4-12 x
Objective lens diameter 40 mm
No. reticles available 1
Waterproof Yes
Fogproof Yes
Field of view 9.9-3.4 m/100m
Max. elevation/windage adjustment range 60 m/100m
Illuminated reticle No
Length 12 in
Weight 414 g

Product Reviews

Collected via Trustpilot 5 star review

This is my second Diamondback 412x40 BDC Vortex scope. Crystal clear optics easy adjustments and I am beginning to use the BDC element with great success. If you do the work upfront to work out the trajectories etc you will be repaid handsomely in results!

Collected via Trustpilot 5 star review

great scope very happy uttings are really great

Collected via Trustpilot 5 star review

Amazing scope and great value for money.

Collected via Trustpilot 5 star review

Totally unbeatable at this price the clarity is as good as some higher end scopes I own build quality is great and the guarantee speaks for itself . Highly recommended

Add Product Review

Type the characters on the left into the box below