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Daniel Defense

Daniel Defense MK18 Upper Receiver Group - Black 10.3"

Daniel Defense MK18 Upper Receiver Group - Black 10.3"
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Availability: Out of stock




Daniel Defense manufactures the highest quality complete AR15 upper receivers on the market today! Every Daniel Defense upper is painstakingly hand assembled, quality assurance tested, and test fired to ensure that the highest quality product makes it to the hands of our customers.  The Daniel Defense M4 URG, MK18 comes complete with bolt carrier group and charging handle, 10.3″ Cold Hammer Forged Barrel, RIS II MK18 Rail System in Black or Flat Dark Earth, and Daniel Defense low profile gas block.



  • 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, MP tested, and Mil-Spec Heavy Phosphate Coated
  • 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
  • RAIL PANELS: Daniel Defense Rail Panels made from Santoprene, heat resistant to 300° F.
  • Made in the USA!



Caliber -  5.56mm NATO

Gas System -  Carbine

Barrel Length - 10.3"

Profile - Government

Product Weight-  3 lbs 8 oz

Additional Info

Additional Info

SKU 23-004-08013-006
Manufacturer Daniel Defense
Finish No
Barrel Length No
Caliber No
Configuration AR-15
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No



Feel free to ask us any question regarding this product.