Daniel Defense DD4 RIIIS 5.56 NATO 11.5″ SBR 30+1

The Daniel Defense DD4 RIIIS is a compact short-barrel rifle built around an 11.5" threaded barrel and a RIS III handguard. It is chambered for .223 REM/5.56 NATO and configured with a 30+1 capacity and a collapsible stock. This entry reflects manufacturer-provided specifications; this is an NFA-classified item and requires compliance with applicable federal transfer regulations.

Key Specifications

• Caliber is .223 REM/5.56 NATO.
• The barrel measures 11.5" and is threaded.
• Magazine capacity is 30 + 1.
• The action is Semi-Auto.
• The product type is listed as NFA - Short Barrel Rifle.
• The rate of twist is 1-in-7.
• Additional equipment includes a Flat Dark Earth RIS III Rail.
• The barrel is described as Cold Hammer Forged.
• The barrel is also described as Chrome Lined.
• The listed manufacturer is DANIEL DEFENSE.

The DD4 RIIIS pairs a compact 11.5" platform with Daniel Defense engineering and the RIS III interface for broad accessory compatibility. Its configuration is intended for qualified NFA owners seeking a compact, well-equipped short-barrel rifle.