The Daniel Defense DD4 RIII URG is a complete upper receiver group chambered in 5.56mm NATO with a 16-inch cold hammer-forged barrel.
- Type: Complete Upper Receiver Group
- Caliber: 5.56mm NATO / .223 Remington
- Barrel Length: 16 inches
- Barrel Profile: Government
- Twist Rate: 1:7
- Handguard: 15-inch M-LOK rail
- Gas System: Mid-length, pinned low-profile gas block
- Includes: Bolt carrier group, charging handle
- Finish: Black hardcoat anodized
- Compatibility: Mil-spec AR-15 lower receivers
