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Vortex Optics Diamondback Second Focal Plane Riflescopes

4.7 4.7 out of 5 stars 2,838 ratings

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Riflescope
4-12x40 - Dead-Hold BDC

About this item

  • The Diamondback 4-12x40 riflescope is one of multiple configurations in the Diamondback lineup and is ideal for big game, predator/varmint, muzzleloader, slug shotgun, and long range applications
  • Dead-Hold BDC reticle is good for any hunting or shooting at varying ranges where estimating hold-over would be a concern.
  • Lenses are fully multi-coated for crystal clear, bright images from dawn till dusk. The fast focus eyepiece allows for quick and easy reticle focusing.
  • Metal on metal precision turrets offer the ability to zero reset after sight-in. A precision glide erector system ensures accurate tracking and repeatability.
  • A solid one-piece tube with a hard anodized finish creates a shockproof and durable scope while helping camouflage the shooter's position. Argon purged and O-ring sealed the scope will deliver a lifetime of fog proof and waterproof performance.
  • Backed by our unlimited, unconditional, lifetime, VIP Warranty. A fully transferable promise to repair or replace your item if it becomes damaged/defective. Does not cover loss, theft, deliberate damage or cosmetic damage that doesn't hinder performance.

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Sold by Eurooptic (✅ Authorized Dealer ✅ Fastest Shipping) and ships from Amazon Fulfillment.
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From the brand


From the manufacturer

leupold athlon primary arms nikon burris trijicon aimpoint holosun
shooting

Diamondback 4-12x40 BDC (MOA) Riflescope (DBK-04-BDC)

This classic go-to hunting scope is off the charts when it comes to image quality, build quality and overall feel of the turrets and the fast-focus eyepiece. If you're in the market for a high-quality riflescope, look no further than the Diamondback - a quality riflescope that offers a variety of configurations.

hunting

Dead-Hold BDC MOA Reticle

  • Customized dot design helps eliminate guesswork on holdover and windage corrections. Good for hunting/shooting at varying ranges where estimating holdover is a concern.
  • Second focal plane (SFP) reticles are located near the scope’s eyepiece behind the image erecting and magnifying lenses. This style of reticle does not visually change in size when you change the magnification. The advantage of an SFP reticle is that it always maintains the same appearance.

DBK-08-BDC DBK-RIM DBK-01-BDC DBK-M-01P DBK-03-BDC DBK-04-BDC
Customer Reviews
4.7 out of 5 stars
2,838
4.7 out of 5 stars
2,838
4.7 out of 5 stars
2,838
4.7 out of 5 stars
2,838
4.7 out of 5 stars
2,838
4.7 out of 5 stars
2,838
Model 1.75-5x32 2-7x35 Rimfire 3-9x40 3-9x40 3.5-10x50 4-12x40
Adjustment Graduation 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA 1/4 MOA
Travel per Rotation 15 MOA 15 MOA 15 MOA 15 MOA 15 MOA 15 MOA
Max Elevation Adjustment 125 MOA 100 MOA 70 MOA 70 MOA 65 MOA 60 MOA
Max Windage Adjustment 125 MOA 100 MOA 70 MOA 70 MOA 65 MOA 60 MOA
Parallax Setting 100 yards 50 yards 100 yards 100 yards 100 yards 100 yards

Product information

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Vortex Optics Diamondback Second Focal Plane Riflescopes


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Important information

Legal Disclaimer

Shipping within the USA only! We Do NOT ship to PO, APO, PR, RI or HI Please allow 5-7 days for handling & Shipping time, we will try everything to get your item shipped as early as possible.

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
2,838 global ratings

Customers say

Customers like the appearance, recoil, and ease of installation of the aiming scope sight. For example, they mention it looks great, holds zero, and is easy to install. Customers are also impresseded with the warranty, saying it's covered by a lifetime warranty. That said, some complain about the eye relief.

AI-generated from the text of customer reviews

461 customers mention441 positive20 negative

Customers are satisfied with the quality of the aiming scope sight. They mention that it is well-made, has decent glass, and is crystal clear. The scope is easy to zero and provides great vision through the scope.

"Excellent Value! glass , clarity, eye relief and light gathering for the budget...." Read more

"Clear accurate durable" Read more

"This is amazing tech. No blind spots, crystal clear optics, shock resistant, and amazing value!! Beats my Nikon P-308 hands down." Read more

"...It seems to hold zero well. The glass is incredibly clear, and the scope is backed up by Vortex's transferrable lifetime warrantee...." Read more

245 customers mention242 positive3 negative

Customers are satisfied with the value of the aiming scope sight. They mention that it is a great product for its price point, the glass is truly exceptional for the price, and it is good low-cost beginner scope. Some say that the scopes are better quality for the same price. Overall, customers are happy with their purchase and recommend it to others.

"Excellent Value! glass , clarity, eye relief and light gathering for the budget...." Read more

"...No blind spots, crystal clear optics, shock resistant, and amazing value!! Beats my Nikon P-308 hands down." Read more

"Vortex makes some great scopes for the money. I put this scope on one of my .22 rifles and I've been very happy with it...." Read more

"...Awesome quality, easy to zero, great vision through the scope. Overall top end product." Read more

70 customers mention70 positive0 negative

Customers are satisfied with the appearance of the aiming scope sight. They mention that it looks and feels great, has beautiful optics, and the fit and finish of the scope is outstanding. The picture it produces is amazing, and it has good contrast.

"Love the crisp view the east focus very easy to zerro once mounted. Will note take the extra time to heck your rings that they are in line...." Read more

"...The reticle is a simple, fine crosshare, so if you are looking for something more advanced, look at the same scope with the BDC reticle...." Read more

"...To be fair, the glass is crisp and clear with good contrast and it's at or near the top of its class...." Read more

"Looks pretty good nice and clear." Read more

42 customers mention42 positive0 negative

Customers find the turret controls on the aiming scope sight very easy to set and have positive clicks. They say the adjustments were made super easy, and the scope is easy to sight in and install. The zoom control is smooth and easy to manipulate, and it's easy to zero in once mounted. Customers also mention that the scopes are simple to put back on and mount to their X Bolt.

"Love the crisp view the east focus very easy to zerro once mounted. Will note take the extra time to heck your rings that they are in line...." Read more

"...The reticle is a simple, fine crosshare, so if you are looking for something more advanced, look at the same scope with the BDC reticle...." Read more

"...Not to mention they are simple to put back on. I have this scope, and a reflex/iron sights for this gun if I am doing walking/shooting." Read more

"...I like the turret controls which are very easy to set and have positive clicks. There is also a way to reset the dials back to zero if desired...." Read more

42 customers mention39 positive3 negative

Customers are satisfied with the warranty of the aiming scope sight. They mention that it is covered by a lifetime warranty, it's unbeatable, and it has a no receipt needed warranty. Some say that the optics are great and the warranty policy is excellent.

"...ANYTHING happen to it, don't sweat it, because it is covered by a lifetime warranty. Sure, you will have to live without it for a while...." Read more

"...Unbelievable! Very clear glass, solid material, unmatched warranty and the best performance in a scope under $1000...." Read more

"...solid scope, at a reasonable price, while still having an unconditional lifetime warranty. I have a 3-9x40 that has been on my Lee Enfield Mk. 4 No...." Read more

"Best scopes for the money, eye relief, accuracy and warranty" Read more

37 customers mention34 positive3 negative

Customers are satisfied with the aiming scope sight's recoil. They mention that it holds zero very well, with no issues due to recoils. Some say that it held zero after many bumps and knocks, and that it handles the recoiil fine.

"...It seems to hold zero well. The glass is incredibly clear, and the scope is backed up by Vortex's transferrable lifetime warrantee...." Read more

"...turrets adjust with strong audible clicks, good glass, and it holds its zero--not to mention the warranty..." Read more

"...It's #1 asset is the fov. Industry leading fov for its class. Held zero, zeroed easily. Turrets are still mushy!..." Read more

"...caps with the same lifetime warranty, smooth functioning zoom and it holds zero...." Read more

36 customers mention36 positive0 negative

Customers like the brightness of the aiming scope sight. They say it gathers good light, has plenty of light transmission in low light, and has great low-light visibility. Some say the light transfer is insane. Overall, most are satisfied with the brightness and durability of this scope.

"...Scope is crystal clear. Plenty of light transmission in low light. Got for a .22WM" Read more

"...Low light performance is decent.It shows chromatic abbreviation in bright light...." Read more

"...there is a large exit pupil leading to a great eyebox and plenty of light transmission...." Read more

"Can see at dawn or dusk with no problem. Crystal clear. I like it better than my buddys $1000 scope...." Read more

56 customers mention12 positive44 negative

Customers are dissatisfied with the eye relief of the aiming scope sight. They mention that it is terrible, short, and causes too much flare or glare.

"...It causes too much flare/glare for my taste and can be difficult to acquire your target (maybe it's my eyes going bad)...." Read more

"Nice scope. Eye relief and target acquisition could be better. Great for long shots where speed is not a issue. Would not buy again." Read more

"...My only complaint is that the eye relief isn't as good as with most Vortex scopes. 3.1 inches isn't really enough for a high power rifle." Read more

"Excellent Value! glass , clarity, eye relief and light gathering for the budget...." Read more

Excellent Budget Scope for Hunting DB 3.5x10x50mm
5 Stars
Excellent Budget Scope for Hunting DB 3.5x10x50mm
Excellent Value! glass , clarity, eye relief and light gathering for the budget. Compared, you may expect this quality glass and reticle in a scope costing a few hundred more. I have two other higher end Vortex Scopes, a RZR LHT FFP and another Diamondback Tacticle FFP on long range bolt gun and Bushmaster Varminter. This scope is mounted on a Custom 6.8 SPC AR I use as a deer and hog gun.
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Top reviews from the United States

Reviewed in the United States on March 8, 2024
Pattern Name: RiflescopeStyle: 3.5-10x50 - Dead-Hold BDCVerified Purchase
Customer image
5.0 out of 5 stars Excellent Budget Scope for Hunting DB 3.5x10x50mm
Reviewed in the United States on March 8, 2024
Excellent Value! glass , clarity, eye relief and light gathering for the budget. Compared, you may expect this quality glass and reticle in a scope costing a few hundred more. I have two other higher end Vortex Scopes, a RZR LHT FFP and another Diamondback Tacticle FFP on long range bolt gun and Bushmaster Varminter. This scope is mounted on a Custom 6.8 SPC AR I use as a deer and hog gun.
Images in this review
Customer image
Customer image
Reviewed in the United States on February 21, 2024
Pattern Name: RiflescopeStyle: 4-12x40 - Dead-Hold BDCVerified Purchase
Reviewed in the United States on February 24, 2024
Pattern Name: RiflescopeStyle: 1.75-5x32 - Dead-Hold BDCVerified Purchase
Reviewed in the United States on December 5, 2023
Pattern Name: RiflescopeStyle: 1.75-5x32 - Dead-Hold BDCVerified Purchase
3 people found this helpful
Report
Reviewed in the United States on August 17, 2023
Pattern Name: RiflescopeStyle: 4-12x40 - Dead-Hold BDCVerified Purchase
Reviewed in the United States on December 5, 2013
Pattern Name: RiflescopeStyle: 2-7x35 Rimfire - V-PlexVerified Purchase
27 people found this helpful
Report
Reviewed in the United States on October 23, 2023
Pattern Name: RiflescopeStyle: 4-12x40 - Dead-Hold BDCVerified Purchase
2 people found this helpful
Report
Reviewed in the United States on January 15, 2024
Pattern Name: RiflescopeStyle: 3-9x40 - Dead-Hold BDCVerified Purchase

Top reviews from other countries

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Dudu
5.0 out of 5 stars Satisfait
Reviewed in Canada on December 20, 2023
Pattern Name: RiflescopeStyle: 3.5-10x50 - Dead-Hold BDCVerified Purchase
Pierre Bouly
1.0 out of 5 stars Attention ! Mauvaises indications sur l'annonce
Reviewed in France on November 11, 2022
Pattern Name: RiflescopeStyle: 4-12x40 - Dead-Hold BDCVerified Purchase
One person found this helpful
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Luke I.
5.0 out of 5 stars This is about as good as you can get for the price
Reviewed in Canada on May 12, 2016
Pattern Name: RiflescopeStyle: 4-12x40 - Dead-Hold BDCVerified Purchase
2 people found this helpful
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S
5.0 out of 5 stars Great for my .270
Reviewed in Canada on January 29, 2018
Pattern Name: RiflescopeStyle: 4-12x40 - Dead-Hold BDCVerified Purchase
5 people found this helpful
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Joe F.
5.0 out of 5 stars n a
Reviewed in Canada on February 2, 2024
Pattern Name: RiflescopeStyle: 4-12x40 - Dead-Hold BDCVerified Purchase