Daniel Defense DD4 RIII URG Upper 16in 5.56mm FDE

The Daniel Defense DD4 RIII URG Complete Upper is a 16-inch AR-style upper designed for use with .223 Rem / 5.56 NATO chamberings. It pairs a cold‑hammer‑forged government profile barrel with a mid‑length gas system intended for smoother cycling. The unit ships with a 12.5-inch RIS III free‑floating M-LOK handguard and an ambidextrous GRIP‑N‑RIP charging handle.

Key Specifications

• The chambering is listed as .223 REM/5.56 NATO.
• The barrel measures 16 inches and uses a Government profile.
• The barrel material is 4150 Chrome Moly Vanadium.
• The barrel type is listed as Cold Hammer Forged.
• The rifling twist rate is 1:7".
• The gas system is a Mid-length direct impingement design.
• The muzzle device is a Daniel Defense Flash Suppressor.
• The handguard is a RIS III 12.5-inch free‑floating M-LOK rail.
• The bolt carrier group ships as an M16 profile, chrome lined unit.
• The charging handle is the GRIP‑N‑RIP ambidextrous design.

Built around durable materials and proven manufacturing methods, the DD4 RIII URG Complete Upper offers a practical balance of durability and modularity for competitive shooting, range use, or general-purpose rifle builds. Its cold‑hammer‑forged barrel, mid‑length gas system and RIS III M-LOK handguard provide a stable mounting platform and consistent performance for users seeking a high-quality upper receiver assembly.