DANIEL DEFENSE M4A1 RIII URG 5.56MM 14.5″ FDE

The Daniel Defense M4A1 RIII URG is an AR-style upper assembly built for standard AR-15 lowers and chambered for .223 REM/5.56 NATO. It ships as an assembled upper with a 14.5" barrel and an integrated RIS III rail system specified in the product attributes. The unit includes a pinned/welded flash hider and a GRIP-N-RIP charging handle for direct replacement on compatible receivers.

Key Specifications

• Chambered for .223 REM/5.56 NATO.
• Barrel length listed as 14.5" M4.
• Rail system listed as FDE RIS III 12.5" M-LOK Rail in attributes.
• Includes Pinned/Welded DD Flash Hider as an additional feature.
• Includes GRIP-N-RIP Charging Handle.
• Rate of twist listed as 1-in-7".
• Overall length listed as 28.6 (per product attributes).
• Weight listed as 5.05 (per product attributes).
• Sights: No Sights.
• Country of origin: US.

This upper assembly is specified for users who require a rugged, drop-in AR upper with a mid-length rail and standard 5.56 chambering. With the listed RIS III rail, pinned flash hider, and a GRIP-N-RIP charging handle, it is configured to accept common accessories and support a variety of operational setups. Its specifications make it suitable for builders and shooters seeking a factory-configured upper assembly for general-purpose use.