Daniel Defense DD4 MK18 RIII 5.56mm 10.3" URG, Black
All NFA rules apply.
- DESCRIPTION
- REVIEWS
Inter-Store Transfer
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The MK18 RIII upper receiver group is designed for versatility and reliability, featuring the M-LOK compatible RIS III rail that builds on the proven RIS II platform. It retains the robust 6-bolt mounting system and M203 grenade launcher compatibility for the 12.5" and 13" rail lengths.
This upper receiver group includes a 10.3" cold hammer-forged, chrome-lined barrel, which enhances durability and accuracy. The 9.5" RIS III handguard provides a lightweight, modular platform for accessories. Additionally, the M16 profile bolt carrier group ensures smooth operation, while the Grip-N-Rip ambidextrous charging handle offers improved ergonomics. Completing the setup is a Daniel Defense flash suppressor, designed to minimize muzzle flash and enhance tactical effectiveness. Overall, the MK18 RIII is built for performance in demanding environments.
Specifications | |
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Caliber | 5.56 NATO |
Gas System | Carbine-Length |
Barrel Length | 10.3" |
Barrel Profile | Government |
MATERIALS & CONSTRUCTION | |
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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, Carbine-length Gas System, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested |
GAS SYSTEM | Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel and Mil-Spec Heavy Phosphate Coating, Carbine-length, Direct Impingement |
MUZZLE DEVICE | Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished |
SIGHTS | Sold Separately |
HANDGUARD | Daniel Defense RIS III 9.5, Patented, 6-Bolt Bolt-Up System, CNC Machined of 6061-T6 Aluminum |
CHARGING HANDLE | GRIP-N-RIP Charging Handle, Body CNC Machined of 7075-T6 Aluminum, Handles & Latch CNC Machined of 6061-T6 Aluminum, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized |
MANUFACTURE | Made in the USA! |
All NFA rules apply.