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MK12

$2,099.00
MK12 is available for purchase in increments of 1
OR Click to Find Local Dealer

Additional Information

Manufacturing # / SKU 02-142-13175-047
Restricted Shipping Yes
Caliber 5.56mm NATO
Muzzle Thread 1⁄2×28 TPI (Threads Per Inch)
Gas System Rifle
Barrel Length 18"
Profile MK12
Product Weight 7.41 lbs
Length 34 ¾” – 37 7/8”
Magazine DD Magazine (32 Round)
Case Daniel Defense Full-Latch Impact Plastic Case
Manufacturer Daniel Defense

Product Downloads

   Rifle Manual Download Rifle Manual

MK12

The evolution of the SPR comes home to Daniel Defense in the MK12.  Born of necessity, raised in the Army’s Marksmanship Unit and refined to Daniel Defense Mil-Spec+ standards, it is now available.  


The MK12 is constructed around an 18-inch Stainless Steel barrel with a chamber created during the Cold Hammer Forging process, which ensures the most precise alignment of the chamber to the bore possible.  This, along with being DLC finished, equates to unprecedented accuracy and durability.  The MK12 barrel is engineered with a rifle-length direct impingement gas system and utilizes the MK12 gas block, which is built to Crane Specifications for USSOCOM.  The MK12 gas block is precision CNC machined from 416 stainless steel and Black Oxide Coated.  The rifle is fed with a M16 profile bolt carrier group and uses a BCMGUNFIGHTER Charging Handle for ease of operation.  The upper receiver is equipped with a free floating DDM4 Rail 12.0 quad rail for allowing your choice of optics and accessories and is finished off with a Daniel Defense Improved Flash Suppressor.  


The MK12 was designed from the ground up to be a precision rifle, therefore it required certain refinements.  We equipped it with the Geissele SSA 2-Stage Trigger to give the marksman an advantage delivering precise fire to the target.  We also furnished the MK12 with the rugged and comfortable Daniel Defense Buttstock and Pistol Grip.

MATERIALS & CONSTRUCTION

  • LOWER RECEIVER: Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point. CNC Machined of 7075-T6 Aluminum,   Type III Hard Coat Anodized
  • UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
  • BARREL: Proprietary Blend of Stainless Steel, Cold Hammer Forged, 1:7” Twist, 18″ MK12 Profile, DLC Finished, and HP/MPI tested
  • GAS SYSTEM: MK12 Low Profile Gas Block CNC Machined of hardened 416 stainless steel with Black Oxide Coating, Rifle-Length, Direct Impingement
  • MUZZLE DEVICE: Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished
  • BOLT CARRIER GROUP: M16 Profile, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key
  • BUFFER: H Buffer
  • SIGHTS: Sold Separately
  • HANDGUARD: Daniel Defense DDM4 Rail 12.0, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized
  • RECEIVER EXTENSION: 6 Position Mil-Spec 7075-T6 Aluminum
  • BUTTSTOCK: Daniel Defense Buttstock, Glass Filled Polymer with Soft Touch Overmolding
  • PISTOL GRIP: Daniel Defense Pistol Grip, Glass Filled Polymer with Soft Touch Overmolding
  • RAIL PANELS: Daniel Defense Rail Panels made from Santoprene, heat resistant to 300° F.
  • Made in the USA!

All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your product in the most expeditious manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer’s products. Be sure to retain your sales slip as proof of purchase date when making a claim.

Product Reviews

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Customer Reviews 38 item(s)

Great craftsmanship, rugged, durable, and effective.
I am proud to be a Daniel Defense weapon owner and an American
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Review by World / (Posted on 6/17/2017)
Best AR I have shot
Love the gun!
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Review by RJP / (Posted on 5/12/2017)
Silky smooth and accurate
Wonderful rifle, a joy to shoot, hard to stop loading another magazine. Reliable and accurate, my best so far at 100m is 5 shot groups of .75 inches at 100m.
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Review by Kiwi / (Posted on 5/5/2017)
Another outstanding product from Daniel Defense.
Finally found a Mk 12, to go with my DD M4A1 Mil Spec +. I installed a Vortex Strike Eagle 1x6 scope, cleaned the rifle . Shooting 77 grain Black Hills Blue box ammo, the gun produces .75 inch 5 shot groups at 100 yards. Very happy with purchase. It will probably shoot better when it has a few hundred rounds through it.
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Review by A/C Man / (Posted on 4/4/2017)
After purchasing this rifle I am convinced Daniel Defense builds the best ARs on the market.
Have sent 500-600 rds through this rifle. It has performed flawlessly. Extremely accurate out of the box. There is no finer rifle on the market.
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Review by MK12 fan / (Posted on 3/30/2017)
The best choice for a 223
The rifle is very accurate. Have had 0 malfunctions.has great points to hook shoulder staps,and the rail is perfect. I also have the 308 DD rifle which does not have the same hookup points,but the mk12,you won't beat it
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Review by Happydog / (Posted on 2/18/2017)
This weapon comes highly recommended.
Have had it 3 years 5000 rounds thru it shooting 62grain LAP green tip love the 1 inch groupings at 200 yrd s will eventually upgrade to a 75 or 77 grain round. Outstanding Rifle
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Review by Greasy / (Posted on 1/28/2017)
This weapon comes highly recommended.
Sweet Rifle have had it for 3 years now. Have fired roughly 5000 rounds thru it with no problems.
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Review by Greasy / (Posted on 1/27/2017)
Customer service kudos
Excellent product. I've got an AR V11 already. Couldn't resist ordering a V12.
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Review by Sheepdog, Canada / (Posted on 1/3/2017)
Very Accurate
Bought this gun a few months ago to add to the collection. Great shooter and very accurate. Now one of my favorites. Got lucky and found one as these are hard to come by. I wanted the gray one but those are always sold out.
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Review by Mark / (Posted on 12/28/2016)
Killer Looks. Deadly Performance.
This is a great rifle for the money. I think It'd be very cool to be able to custom order a kit like this and select upgrades or swap out things like the charging handle, BCG finish, FA finish and even ambi. switch, but we can just go on a shopping rampage until the wifey hides the debit card I suppose.
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Review by QuickFox / (Posted on 10/29/2016)
Great gun. Highly accurate
Love this gun. Best gas gun I own.
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Review by River / (Posted on 10/19/2016)
Marco Antonio
Ótima arma, perfeita para ações táticas, é possível atestar suas qualidades e confirmar que é a arma ideal para qualquer tropa de elite!

Translation:
Great weapon, perfect for tactical actions, can attest to their qualities and confirm that the ideal weapon for any elite troops!
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Review by Gigante Patriota / (Posted on 9/12/2016)
Amazing performance
Absolutely love this rifle, right out of the box it just performed perfectly. My only wish at all is that I would love to see higher detail on the little things, like the safety switch. If these were custom like some other guns in the price range, I'd say it was perfect. Still glad I picked this over the competition, I couldn't build this performance for this money!
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Review by TINYOPUS / (Posted on 9/6/2016)
Great product!
Love everything about this firearm. Solid quality. No rattled what so ever. Trigger is awesome!
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Review by Bukoski / (Posted on 8/2/2016)
Excellent product.
Just purchased this rifle for predator hunting. Can't wait to get my hands on it.
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Review by TravKLee / (Posted on 7/16/2016)
Excellent choice
Absolutely love this platform. My spotters run this platform supporting the sniper on a bolt gun. Very capable sub MOA platform
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Review by Mark / (Posted on 7/14/2016)
Nice
Great gun for the money
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Review by Poppa / (Posted on 7/12/2016)
Awesome Rifle
I have a DD MK12 with a Mk4 Leupold 4.5x14. Only put couple hundred rounds through it so far but today I shot several 3 round groups at 100 yards with different ammo. The best was Hornady 75 gr match .26" (unbelievable), HSM v-max 55 gr .48", Hornady Zombie 55 gr .59", Remington Hog Hammer 62 gr .96", Federal Gold Medal Match 77 gr .97"(barrel was heating up may have been cause of FGM to open up a lil) regardless this is awesome coming from an AR type rifle.
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Review by Sawz / (Posted on 6/25/2016)
Damn. Fine. Rifle.
Shoot this rifle at a local range. It was a rental. Unlike many range guns, this was one of the oldest in the fleet, and shit like it was brand new. Not a big AR enthusiast, I put 50 round in the X Ring at 75 yards with open battle sights. This will be my rifle of choice when the wife isn't looking.
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Review by Danger Zone / (Posted on 6/7/2016)
Fantastic rifle.
I just purchased a DDM4 MK12. Wow, what a piece of craftsmanship. Through the years I have owned 6 different brands of AR's. None of those came close to the quality and craftsmanship of this rifle. Trigger is just plain phenominal. Keep up the good work and attention to detail.
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Review by Randy / (Posted on 6/2/2016)
Great Rifle great price
Price is right. Gun shoots holes into holes
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Review by Matt / (Posted on 5/26/2016)
Completely reliable, well made, should have better accuracy for the price.
I have two DD rifles, a DDM4V5 in .300 Blackout, and a Mk12 that I bought about two years ago. I bought the Mk12 with the idea of it being an all-around 5.56, good for hunting as well as general field use. I was eager to try the nitrided barrel, with the idea it would be very accurate yet also extremely durable. As far as function, the gun has been 100% reliable, and I would trust this rifle to run for years with few problems, if any. The downside is, I've spent a lot less money to have more accurate rifles. So far with the Mk12 my best 10 shot groups at 100 yards run around 1.5". I have a less expensive gun I built (albeit with a heavier bull barrel) that shoots groups about 1/2 the size. In fairness, some friends and I had an informal 10 shot group contest, and the Mk12 beat many of them.

I changed out the buttstock to a Magpul STR, as the factory stock is light, but not easy to shoot off a bench. Changed the trigger to a Geissele DMR, and the flash hider is now a PWS triad, both changes made to tweak accuracy. I plan to adjust the OAL of the loads, and try some Berger bullets. If I can get 5 shot groups consistently under an inch at 100 yards, I'd be quite satisfied. The Mk12 dropped a deer for me in the fall of 2014, and worked fine in rainy weather.

Pluses are, build quality, the slim DD rail, nitrided barrel. Minuses are, not as accurate as it should be for the price.
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Review by Apochromat / (Posted on 4/26/2016)
Great rifle
Amazing rifle shoots well.
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Review by Ar hunter / (Posted on 4/23/2016)
Outstanding
I went to the range this weekend with my new MK 12 in Tornado Gray to break in the barrel and sight in the Magpul MBUS sights (in the Stealth Gray color, which look great). Due to who was using the range, I was limited to 50 yards. Within a few shots I was hitting the 1" diameter (or so) bulls eye repeatedly with open sights. It was ridiculously easy. The rifle was so consistent that I am very much looking forward to getting a good scope and rings to see what it will really do. I can already tell the accuracy will be outstanding. The fit, finish, feel and function says quality everywhere, and I am very pleased with my purchase. If you consider that a Giessele aftermarket trigger, which almost everyone will want to put into their AR 15 at some point, will be somewhere around $250 and up (assuming no install charge, which some people may have to add), this gun needs to be compared to a $1,750 gun (or less) without a Giessele trigger, and doing that comparison I don't think anyone can touch it. In my view, it was worth the wait to save up a little more money to get something that stands head and shoulders above the rest.
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Review by Chief / (Posted on 3/28/2016)
Awesome piece of Kit!
Exactly what it was advertised to be, a DDMK12. Basically, if Daniel Defense had the contract to provide the MK12 for SOCOM, this is what you would get, minus the Ops Inc Mk12 break & collar and the SOPMOD furniture of course.
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Review by Addm44 / (Posted on 3/26/2016)
This gun can put some lead down range!
Real happy with this purchase.
I'm new to the longer distance and this gun is helping the learning curve!
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Review by Ric Chaos / (Posted on 3/26/2016)
Used the MK 12 in a 3 gun match, it worked wonderfully.
I bought one of these several months ago because all I had were low end AR's. I love this MK12 and now have sold one of my low end rifles. The trigger is awesome and fit and finish is extremely high quality. Now I want a .308 version!
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Review by Steve / (Posted on 3/13/2016)
Awsome
Awsome piece of equipment,does everything right.
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Review by Autoloader / (Posted on 3/11/2016)
Best rifle ever made
I have replaced all my rifles with Daniel defense. Replaced my Colt competition rifle and lwrc repr, Colt 6940,colt 6920LE, and LMT m4, with all Daniel defense. My son is currently in training with his DD v11lw for competition. Currently working on purchasing a mk18. Daniel defense are the best I've ever fired and most accurate weapon I've ever owned. Thank you for making the best rifle on the planet
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Review by Woods / (Posted on 3/1/2016)
Best rifle I've shot much less owned.
By far the best rifle I've ever shot. 6 years U.S.M.C., 24 years Jacksonville Sheriffs Office Florida (5 years S,W.A.T.) Very happy with my purchase.
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Review by Jason / (Posted on 2/13/2016)
.328 m.o.a with the 77grn tmk.
I have a custom ordered mk12. I love it period. Crazy accurate.
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Review by whtlhntr / (Posted on 2/11/2016)
excellent product
Absolutely superb firearm in every way!
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Review by heavyduty1 / (Posted on 2/6/2016)
Awesome
I love this rifle. Put a Leupold scope on it in some quick attach mil spec mounts. I was shooting down to the diameter of a dime at the range before I emptied the magazine.
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Review by Akinkelaar / (Posted on 2/2/2016)
A+
Everything I was looking for, everything I was expecting from a DD product. It was a fun challenge to fine the weight that the 18" barrel with the 1:7 twist likes best. I paired with a Nikon M223 scope for excellent, repeatable, results.
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Review by messianicrock / (Posted on 1/31/2016)
Exceeded expectations: A+
The DD MK12 has performed flawlessly. I have only ran Black Hills 77 grain (MK 262) ammo through it, and it hasn't shot a single 3-5 shot group over an inch. The Black Hills MK 262 ammo compliments this rifle perfectly. The price point is awesome as well if you consider the BCM MK12 is $500-600 more than the DD MK12. Also, the rifle length gas system shoots extremely smooth, mitigating most felt recoil. With multiple options for swivel attachments for a sling, and plenty of real estate for optics, lights, grips, etc. on its 12" rail, you can't beat the value. Not to forget the Geissele SSA 2-stage trigger that is smooth as silk, and the great DD furniture.
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Review by B-Rich / (Posted on 1/28/2016)
Good
LOL... awesome rifle, VERY accurate, and the smoothest shooting auto loader I have ever shot, amazingly well built and designed. Quality? after my lifetime, my sons will inherit it still shooting as accurate and smooth as it did for me, and I would be willing to bet there is will be a fight over which one gets it! lol...
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Review by Nagalfar / (Posted on 1/19/2016)
Great rifle
Fit and finish on this rifle is outstanding. Definitely one of the most well built AR's on the market today. Very high quality
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Review by Dave / (Posted on 1/14/2016)
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