Diamondback HP 3-12x42

HP 3-12x42

Diamondback HP 3-12x42 is rated 4.9 out of 5 by 96.
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MSRP $399.99


The Diamondback HP (High Performance) riflescope offers a full-on array of features that discerning hunters are sure to appreciate. Optically, these scopes hit the proverbial mark. XD extra-low dispersion glass increases resolution and color fidelity while XR fully multi-coated lenses maximize every minute of shooting light. The side focus/parallax adjustment is easily accessible while keeping a trim profile and allowing optimal mounting height. And, with a 4x zoom range, the Diamondback HP offers highly versatile magnification.

Magnification 3-12x
Objective Lens Diameter 42 mm
Eye Relief 4.0 inches
Field of View 28.8-8.2 ft/100 yds
Tube Size 1 inch
Turret Style Capped
Adjustment Graduation 1/4 MOA
Travel Per Rotation 15 MOA
Max Elevation Adjustment 90 MOA
Max Windage Adjustment 90 MOA
Parallax Setting 30 yards to infinity
Length 12.5 inches
Weight 18 oz




XD™ Lens Elements Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images.
XR™ Fully Multi-Coated Proprietary coatings increase 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 1 inch diameter tube offers a versatile blend of adjustment, size and weight for a wide variety of shooting applications.
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 binocular 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 hard-coat anodization provides a low-glare matte surface and helps camouflage the shooter's position.
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.
Side Focus Adjustment located on left side of turret housing is easily accessible from shooting position. Provides optimal image focus and parallax removal.


Precision-Glide Erector System This system ensures the components in the zoom lens mechanism glide smoothly and cleanly through all magnification ranges.


Fast Focus Eyepiece Allows quick and easy reticle focusing.


Please select Reticle.



Rated 5 out of 5 by from What a great piece of glass I put this scope on a custom built A.R for my now 11 year old daughter,which she used to take her first deer with last season.The clarity is phenomenal, the value I feel is the best on the market.Vortexes commitment to quality isworld class.We do an annual July 4th cookout and we all bring plenty of firearms,while we were shooting rifles,everybody wanted to use my daughters rifle when we were blowing up tannerite because of the amazing clarity this scope provides. I have a friend who pro staffs for a competitor and could have gotten me any piece of glass I want at his cost,only problem is,it isn't a Vortex !
Date published: 2017-06-15
Rated 5 out of 5 by from Checked all the boxes This is the scope that had everything I was looking for: long eye relief, parallax adjustment, and a good range of magnification for all purposes. I regularly hunt in the pacific northwest where i'm often trudging through the deep brush, with 75 yards being the longest shot I've taken in that environment, but am also a 3 hour drive from open mule deer country. Having a scope that could be optimized for both short range hunting and med-long range hunting was a must for me, as I don't have a budget for both a blacktail rifle and a mule deer rifle. This is the scope that fit the bill, due mainly to the parallax adjustment and the 3X low end magnification -not a common combo. I do find the scope to be on the heavy side, but that comes with the versatile features.
Date published: 2017-06-15
Rated 5 out of 5 by from Perfect for my kiddo... My son wanted me to talk to my friends at vortex to get him a scope for his 17HMR. I sent a few emails back and forth and at the recommendation of the staff I decided on this diamondback hp unit with the BDC reticle. Setting it up at zero was easy and with a small dope card in hand my son couldn't be happier with it. He has easily put a couple thousand rounds through his rifle with this scope and loves it. Now he wants another scope like it for his first AR. Kudos to the team at vortex for making a great product and for sending out some swag for my son for his first rifle. Well done!!
Date published: 2017-06-15
Rated 5 out of 5 by from Best Optic Ive ever owned! I bought my Diamondback HP 3x12 with BDC ret. about a year ago. I built a AR platform gun (my first) to shoot in entry level two gun matches. I know a lot of guys shoot 1x6 type optics but I'm a little older and wanted the magnification, My first shoot was where it earned its place as my best optic. The clarity, depth of field, BDC reticle, and the side focus knob allowed me to quickly range and acquire hits on 6" steel targets from 200 to 450 yards on the first or second shot. It was amazing and helped me score with the big boys. I love it and am now replacing all my scopes when I can with VORTEX. AWESOME SCOPES!
Date published: 2018-03-08
Rated 5 out of 5 by from Excellent choice for my Precision AR15 I use this scope on my precision AR and it's perfect for my setup. It has great eye relief and the glass is crystal clear making long shots easier in many different lighting situations. I have recommended this scope as well as this company to many of my friends as the biggest thing I love is the vortex no questions lifetime VIP warranty. It gives me peace of mind to use my rifle as it was intended without having to worry about babying my weapon or lose my mind if it takes the slightest fall. Thank you Vortex for a high quality optic which in my opinion blows the higher priced competition out of the water and a warranty that I am relieved to take my gun/scope out of the house.
Date published: 2017-06-15
Rated 5 out of 5 by from I would buy over and over again and recomand this product I use this product on my ar-15 for prairie dog and coyotes and bobcats and I can say they say zeroed no matter what. My diamondback scope has been through bumpy roads and cooled days here in Colorado and I can say they are tough I love them and the people at vortex are just amazing I have gone through a lot of scopes and until ,y buddy told me about vortex I tried them and fell In Love with them. It would be arame to win the binos and harness because I would put them to good use this rifle season here in Colorado on some big elk and deer
Date published: 2017-06-15
Rated 5 out of 5 by from Awesome scope Recently got this for my Ruger American Predator in 6.5 creedmoor and am amazed at the quality/clarity. It has a Very clear picture and the side focus is really nice too!
Date published: 2017-11-07
Rated 5 out of 5 by from Vortex Diamindback Scopes-a sensible choice I have purchased several of these riflescopes for my sons rifles. It is important to me that they be durable and hold their zero as these boys move through their hunting grounds quickly and their rifles are heavily used. With my boys from a very early age when I first began purchasing Vortex products I have been impressed with their ease of use, quick focus, and yes durability. My boys from the beginning were expected to hunt and shoot on their own and these scopes have performed for them year after year and without fail.
Date published: 2017-06-15
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