Description
The Daniel Defense DD4 MK18 RIII is an AR-style short-barreled rifle built around a compact 10.3″ cold-hammer-forged barrel and the RIS III Rail Interface System. The RIS III lowers weight relative to earlier RIS rails while offering multiple M-LOK attachment positions and an uninterrupted top rail for optics and accessories. The rifle includes fully ambidextrous controls, a mid-length gas system, and Daniel Defense furniture for a compact, user-friendly platform suited to close-quarters and duty-oriented applications.
Key Specifications
- Chambered for .223 REM/5.56 NATO.
- Barrel length is 10.3″.
- Action is Semi-Auto.
- Barrel type is Cold Hammer Forged.
- Controls are Ambidextrous.
- Finished in Black Anodized.
- Equipped with a Daniel Defense Stock.
- Muzzle device is a Flash Hider.
- Listed weight is 5.73 lbs.
- Rate of twist is 1-in-7.
Compact and purpose-built, the DD4 MK18 RIII brings Daniel Defense engineering to a short, maneuverable platform. Its RIS III handguard offers M-LOK flexibility and a continuous top rail for mounting optics, while the cold-hammer-forged 10.3″ barrel and mid-length gas system balance durability with controllability. The result is a refined short-barreled rifle that fits roles where compact handling and proven components are priorities.
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