Daniel Defense MK18 Upper Receiver
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, and Daniel Defense low profile gas block. Mk18 FDE RIS II rail factory installed.
The uppers are available with various choices of rail systems. The Daniel Defense M4 Upper Receiver Groups are light weight and rugged that are ready for action.
The barrels on our upper receiver groups are all constructed from 4150 MP tested steel and are chrome lined.
Materials & Construction
Precision crafted from the highest quality material available today with meticulous attention to detail, The Daniel Defense M4 Upper Receiver Groups will prove to be the standard in the industry.
- Upper Receiver: Mil-Spec with Indexing Marks and M4 Feed Ramps
- Barrel: 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, threaded 1/2x28 tpi
- Chamber: 5.56 NATO
- Flash Hider: A2 Birdcage Flash Hider
- Bolt Carrier Group: Mil-Spec MP Tested, Properly Staked Gas Key
- Handguard: RIS II MK18
- Rail Cover: (3) Daniel Defense low profile rail ladders
- Made in the USA!