Vortex Diamondback Tactical 4-12x40 VMR-1 MOA Riflescope

Item No. 87587400869
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Product Description


The Vortex Diamondback Tactical 4-12x40 Riflescope houses the next generation of optics with cutting-edge detail and features. This riflescope features a dialing elevation and windage to allow for quick and precise action that you need to for an extended range. With a magnification power of 4-12x, you'll be able to get a clear closeup of your target with accurate aim and precision. The durable riflescope features waterproof and fogproof elements to protect your riflescope from external and internal damage. The fully multi-coated lenses improve the amount of light transmission on all air-to-glass surfaces, and the lens elements provide an extra-low dispersion for illuminated, sharp images.


  • XD™ Lens Elements: Extra-low dispersion (XD) glass supplies an illuminated, sharp image.
  • XR™ Fully Multi-Coated: Proprietary coatings improve the amount of light transmission on all air-to-glass surfaces.
  • Second Focal Plane Reticle: Scale to reticle maintains the ideal-sized appearance. The listed reticle subtension estimates the range, holdover, and drift correction at the highest magnification.
  • Aircraft-Grade Aluminum: Crafted from a solid block of aircraft-grade aluminum.
  • Waterproof: O-ring seals protect the scope from moisture, dust, and debris damage.
  • Fogproof: Protected against internal fogging in a variety of temperatures.
  • Shockproof: Rugged construction withstands recoil and impact.
  • Hard Anodized Finish: Low-glare matte finish.
  • Precision-Glide Erector System: Ensures an ample amount of smooth magnification that adjusts to harsh conditions.
  • Exposed Tactical-Style Turrets: Helps provide fast, accurate and easy to read elevation and windage adjustments.
  • Fast Focus Eyepiece: Quick and easy reticle focusing.
  • Fiber Optic Radius Bar: Patented fiber optic Radius Bar visually assists tracking turret rotations.
  • Magnification Rib: Raised rib on the magnification ring facilitates fast magnification changes in heat of action.
  • Magnification: 4-12 x
  • Objective Lens Diameter: 40 mm
  • Eye Relief: 3.9-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
  • Lens covers
  • Lens cloth
  • Tools

Additional Information

Customer Reviews

4.9 / 5.0
61 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Outstanding scope
I've had this scope for about 2 months zero in at 60yds then 100yds. I haven't missed a shot yet I'm satisfied.
November 6, 2020
Originally posted at
Rated 5 out of 5
I really like this scope, it was for my 11 year old daughter and I’m impressed with it
User submitted image
Added Aug 16, 2020
August 16, 2020
6 months ago
Rated 5 out of 5
Great scope in many ways
I bought this scope to use on my AR-15 for coyote hunting and any other hunting I can use my AR-15 for. The scope was quick and easy to use and sight in. I have never had any problems with warranty. I sent in my binoculars and they repaired them sending them back quicker then they stated. Thank you Vortex for outstanding work.
August 3, 2020
Originally posted at
Rated 5 out of 5
love it!
i bought this scope several months ago and placed it on top of my ruger american predator in 204, excellent sight picture and glass is incredibly clear!
February 10, 2020
Originally posted at
Rated 5 out of 5
Great scope with great features
I bought this to replace a Bushnell Banner dusk & dawn 3-9X40 scope that I had mounted on my Mossberg .243 100ATR. I own quite a few rifles and own different brands scope on them. I am very impressed with the quality of Vortex in the past 3-4 years. I own 3 rifle scopes and 1 pair of binos that are Vortex. This DT has clear glass, and has more than enough MOA for distance shooters. Depending on the distance you plan on shooting reaching out to 1100 yards with a zero MOA base and zero MOA scope rings is not needed. This scope tracks well and holds zero with "Zero" issues. If I had to pick any changes I would have had one that I wish would be different it would be nice if the scope came with a sun shade like most other Vortex scopes do rather than buy them. I'm not sure if its because of the cost of the scope or what but it would be nice to raise the cost and add the sun shade with it. The tech support and warranty of Vortex is of the best and I would highly recommend this product.
February 7, 2020
Originally posted at
Rated 3 out of 5
Incorrect turret markings
I have had this 4-12 scope for quite a while and noticed tonight the windage turret is marked backwards. Vortex shows it on their website also. If you turn to make right hand adjustment the turret moves to the left hand markings. It is opposite of the markings on their other scopes. Very disappointed they did not catch it. I am surprised that no other reviews state it.
January 25, 2020
Originally posted at
Rated 5 out of 5
Worth the moneny
Mounted on my Ruger Precision Rimfire .22 mag. Holds zero, clear glass, never fogs up. At 50 yards I'm shooting a sub 1/2 inch shot group.
January 2, 2020
Originally posted at
Rated 5 out of 5
Great bang for your buck!
Bought this scope 2 seasons ago for my 308 great scope for the money. Very clear and easy to use
January 2, 2020
Originally posted at
Rated 5 out of 5
Awesome Scope
I have had this on my .270 for two seasons now. It is a very reliable scope. Very clear and the turret is a great feature to always dial in the distance.
January 2, 2020
Originally posted at
Rated 5 out of 5
Nice scope
Very good quality for the money
June 30, 2019
1 year ago