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Customer Reviews
Helpful Positive Review Great value by Legacy Reviewer, May 3, 2011
Put one on my Winchester model 70 featherweight 30-06 and it was super easy to sight in 2 inches high at 100 yds. Held spot on at 200yds and the BDC dots kept me on at 300 yds. I'll buy another for my new Thompson Centerfire Icon in .308. Pros: Brigh...
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3/8 found this helpful
Helpful Positive Review DIAMONDBACKS ROCK !!!!!!!!!!! by TOOTY, November 13, 2014
JUST received my second Diamondback and just ordered the Viper model soon to arrive. In the old days scopes of this quality were very expensive and not anymore . I"m so pleased with the clarity , it's staggering to me that ya can get this kind of qua...
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2/3 found this helpful
Helpful Positive Review Great for high powered spring pellet guns by Legacy Reviewer, Verified Owner, March 11, 2014
Needed an adjustable objective (down to 10 yards and out to 100+) scope that has a lifetime warranty (springers eat scopes) and excellent picture quality for a high powered spring pellet gun. This one fit the bill. I am very pleased, though a bit pri...
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4/4 found this helpful
Helpful Positive Review Great scope by Jeff, Verified Owner, July 12, 2015
I got this for a .223/556 bolt action with a 24" med. heavy free floated barrel.I bought the gun as a target rifle only. Optics are sharp and clear all the way to 12X.Sighting in went as normal. It holds 0 with no problem. Field of view is good with...
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1/1 found this helpful
Helpful Positive Review Diamondback 4x12 AO by PGB, Verified Owner, August 11, 2013
Vortex good value. I have been pleased with all my vortex products crossfire, viper and now diamondback. Great warranty but I haven't had to use it. Pros: Scope is very clear, great field of view, BDC is referenced in MOA, focuses down to 10yds Cons:...
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5/6 found this helpful
Helpful Positive Review new scope by Legacy Reviewer, October 29, 2012
my son installed his new scope on his .243 Winchester rifle and has not sighted in the rifle to date. Very nice quality scope for the price.
2/8 found this helpful
Read All 23 Reviews

Product Discontinued by Manufacturer

Vortex Diamondback 4-12x40 AO Rifle scopes has been discontinued by Vortex and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Rifle Scopes & Accessories, Rifle Scopes yourself to try and find the perfect replacement for you!

Product Info for Vortex Diamondback 4-12x40 AO Rifle scopes

Vortex Diamondback 4-12x40 AO Riflescopes with Dead-Hold BDC Reticle or V-Plex Reticle by Vortex Optics For crystal cleal and tack-sharp images, this adjustable objective riflescope allows maximum precision on smaller targets. Vortex Diamondback 4 12x40 AO Riflescope delivers all of the power you need for medium to long range hunting. The Vortex Diamondback riflescope is virtually indestructible with its solid, one-piece aircraft-grade aluminum alloy construction. It's also highly resistant to magnum recoil. Vortex Rifle Scopes with a 4-12x magnification and a 40mm lens is ideal for big game, muzzleloader, slug shotgun, long range and target applications. Vortex Optics knows good hunting gets all the better with high quality optics. The Diamondback 4-12x 40mm AO Rifle Scope by Vortex Optics consists of a rugged, durable 1-inch tube constructed of premium grade of aluminum that is valued for fatigue resistance. Vortex Riflescopes subject all of their riflescopes to demanding factory testing under a force of 1000 G's - 500 times! Not only is this rifle scope waterproof, it is highly prized for its purging with Argon gas. This feature helps to eliminate internal fogging. Vortex Diamonback 4-12x40 AO riflescopes also come with a VIP Unconditional Lifetime Warranty.image

Specifications for Vortex Diamondback 4-12x40 AO Riflescopes:

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 profile
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

Features for Vortex Diamondback 4-12x40 AO Riflescopes:

  • VIP Unconditional Lifetime Warranty
  • Fully Multi-Coated Lenses Increase light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
  • 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 Profile 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.
  • Adjustable Objective Uses an adjustment mechanism on the objective lens to fine-tune focus for the purpose of reducing parallax shooting error.
  • Waterproof Optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the binocular.
  • Fogproof Barrels are filled with argon gas to inhibit internal fogging.

Package Contents:

  • Vortex Diamondback 4-12x40 AO Riflescope
  • Removable lens covers
  • Dust cloth

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Related Products to Vortex Diamondback 4-12x40 AO Rifle scopes

Vortex Diamondback 4-12x40 AO Rifle scopes Unavailable & Discontinued Models

List of Unorderable Models

Vortex Diamondback 4-12x40 AO Rifle Scopes , MPN: DBK-412PL , UPC: 875874001824 , Code: VX-RS-DMB4-DBK-412PL
Vortex Diamondback 4-12x40 AO Rifle Scopes , MPN: DBK-412B , UPC: 875874001817 , Code: VX-RS-DMB4-DBK-412B
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