4.88 out of 5 based on 8 customer ratings
(8 customer reviews)


34 in stock

Product Code: DD-23-004-08013-011 Categories: , , ,

The Daniel Defense M4 URG MK18 FDE comes complete with bolt carrier group and charging handle, 10.3″ Cold Hammer Forged Barrel, RIS II MK18 Rail System, and Daniel Defense low profile gas block.


Product Description

Daniel Defense M4 URG MK18 FDE

The Daniel Defense M4 URG MK18 FDE comes complete with bolt carrier group and charging handle, 10.3″; Cold Hammer Forged Barrel, RIS II MK18 Rail System, and Daniel Defense low profile gas block.
NFA Disclaimer
Once this Daniel Defense M4 URG MK18 FDE is assembled into a complete firearm, it becomes a regulated item by the National Firearms Act (NFA). Please check with your local and state municipalities for any further regulatory requirements. It is the buyers responsibility to make sure they comply with all NFA rules and applicable laws apply.

Warranty Statement

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

Cold Hammer Forging of barrels has been known for decades to produce the most accurate, longest lasting rifle barrels obtainable. The Cold Hammer Forging of barrels is accomplished through intense hydraulic pressure applied at opposing angles by carbide steel hammers. During the hammering process, a mandrel is inserted into the bore while the carbide steel hammers shape the barrel around the mandrel creating the chamber, the lands, and the grooves. In addition to the aforementioned benefits, the Cold Hammer Forging process creates a defect free bore and the most consistent chamber possible.  You can see all of our Complete Upper Receiver Group products on our category page here.

  • UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
  • BARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7 Twist, 10.3″ Government Profile, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested
  • GAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine 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
  • SIGHTS: Sold Separately
  • HANDGUARD: Daniel Defense RIS II MK18, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized
  • CHARGING HANDLE: GRIP-N-RIP Charging Handle, Body CNC Machined of 7076-T6 Aluminum, Handles & Latch CNC Machined of 6061-T6 Aluminum, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized
  • RAIL PANELS: Daniel Defense Rail Panels Made from Santoprene, Heat Resistant to 300° F.
  • Made in the USA!

First Look at the Daniel Defense MK18 Pistol

Daniel Defense MK18 Full Auto Test

8 reviews for Daniel Defense M4 URG MK18 FDE

  1. 4 out of 5


    The MK18 URG was exactly what I would expect from Daniel Defense. I did find it odd that it was not in a DD box. Every other one I’ve seen comes straight from DD in it’s own packaging. This was in a plastic bag, diagonally placed in a square box packed with craft paper. It had a couple of little dings. But, since I intend to shoot it, and not look at it, that’s no big deal. Just being tossed in a regular box was a surprise though.

  2. 5 out of 5


    I just got home from my first range trip running this upper. Threw an Aimpoint T-1 on top and a pistol build on the bottom. Ran about 150 rounds without a single issue and accurate as can be. I’m certainly satisfied with the product but disappointed in the fact that it arrived a little beat up due to the fact that it was shipped wrapped in brown paper instead of the manufacturer’s packaging.

  3. 5 out of 5


    Ordered and got it in 4 days, upper quality is excellent. Running a Wolff extra power spring with Spikes ST-T2 buffer and runs flawlessly. Ammo shot was green tip, xm193 and freedom munition reloads .223. Great buy! Thanks WesternSport.

  4. 5 out of 5


    This upper came in original Daniel Defense box with everything it is soposed to have. Ignore the negative reviews. This is the best MK18 on the market at the best possible price! Buy it now. I’m a GA native and love supporting USA business especially ones located in my home state of Georgia.

  5. 5 out of 5

    (verified owner):

    Order this upper and received the black mk 18 on accident. Colby and Blake went above and beyond to accommodate the mistake and sent me a return postage and sent the FDE upper out in the same day to accommodate me leaving the country for the holidays. Do not hesitate to order from western sport! Thanks again Blake and Colby!

    As for the actually mk18 upper in black. It came in the DD box and as we all know DD is exceptional. Can’t wait for the FDE version to finish my mk18 clone pistol!

  6. 5 out of 5

    (verified owner):

    Amazing product. Arrived within 3 business days inside the original DD box (perfect packaging). Western Sport even called me to confirm my address before shipping. Would highly recommend buying from Western Sport to anyone! Hope to order from them more in the future. Cheers!

  7. 5 out of 5

    (verified owner):

    I’ve got to say, I’m super impressed with Western Sport! I was looking for months on getting my hands on the DD MK18 pistol, but unfortunately I couldn’t find a single retailer that had it in stock complete (or if I did I would have been dropping over 2.5k). So I decided at that point ill buy the DD upper and put whatever high quality lower I want on it. NOPE… Now I can’t even find the upper! Then, weeks later, Western Sport is popping up saying they have a bunch of the uppers in stock while “no other place does” – I’d say I was skeptical.. So without checking WS credentials, logically, I sent it! I was fiending at this point.. And what do you know? I had it in my hands within 4-5 days, packaged to perfection!! I was so impressed by that, by golly, I went and bought me another one! Your welcome Dad..

    Don’t let me down WS,
    Your loyal customer

  8. 5 out of 5

    (verified owner):

    Hands down one of the best companies out there right now, not only is having an accurate inventory count crucial but also ordering the best price for the crazy times we’re in right now. Western sport has crazy fast shipping bought this upper in a Wednesday and they processed and shipped by EOD Thursday. I’m in California and I received it the following Saturday. I will definitely be doing business with Western Sport again in the future that’s for sure

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Additional information


Upper Receiver: A4 Upper Receiver with M4 Feed Ramps Barrel Characteristics: 10.3 Cold Hammer Forged, 5.56 NATO Chamber, 1:7 Twist, Govt Profile, Carbine Gas Port, Chrome Lined, Mil Spec Heavy Phosphate Coated, HP and MPI tested Bolt Carrier Group: F/A BCG, HP and MPI Tested, Shot Peened Bolt, Extractor Booster, Properly Staked Gas Key Flash Hider: A2 Bird Cage Flash Hider Rail System: RIS II MK18 Low Profile Gas Block Weight: 3lbs 8oz