Daniel Defense DD4 RIII S Upper Receiver Group, 11.5″ 5.56
The DD4 RIII is the next generation of Daniel Defense upper receiver groups, coming out of the box with a RIS III handguard.
The DD4 RIII S AR15 style Upper Receiver Group is built around a 11.5 inch Cold Hammer Forged Government Profile barrel with a Daniel Defense Flash Suppressor, a GRIP-N-RIP Charging Handle, and our carbine length gas system. It features a 10.5 inch lightweight RIS III rail—modeled after the revolutionary RIS II two-piece handguard developed for SOCOM— which features M-LOK attachment for lighter weight. All Daniel Defense complete upper receiver groups come standard with an M16 profile bolt carrier group.
Specifications
- Caliber: 5.56mm
- Upper Receiver: Forged Milspec
- BCG: Daniel Defense Full-Auto M16 Bolt Carrier Group
- Bolt: Standard Bolt
- Rail: 10.5″ RIS III
- Barrel: 11.5″ Cold Hammer-Forged Barrel, 1:7 Twist
- Gas System: Carbine Length
- Gas Block: Daniel Defense Low-Profile
- Charging Handle: Daniel Defense
- Muzzle Device: Daniel Defense Flash Hider


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