Daniel Defense DD4 RIII 5.56mm 16in 10+1

About this product

This Daniel Defense DD4 RIII is a lighter-weight, fully ambidextrous variant of the DDM4 platform designed for versatile range and sporting use. It features a 12.5″ RIS III M-LOK rail for modular accessory mounting and a mid-length gas system for smooth, reliable cycling and reduced perceived recoil. The lower is fully ambidextrous and the rifle ships with a collapsible six-position stock and DD Soft Touch furniture for durable, ergonomic handling. The DD4 RIII is built on a CNC-machined 7075-T6 aluminum receiver with a steel, threaded 16″ barrel and a standard flash suppressor.

Key Specifications

• The caliber is .223 Rem / 5.56 NATO.
• The barrel measures 16 inches and is described as steel.
• The magazine capacity is 10 + 1.
• The action is Semi-Auto.
• The gas system is a mid-length design for smoother operation.
• The handguard is a 12.5″ RIS III M-LOK rail for accessory attachment.
• The receiver material is CNC machined 7075-T6 aluminum.
• The twist rate is 1:7.
• The stock is a 6-position collapsible unit with SoftTouch overmolding.
• The muzzle device is a flash suppressor and the barrel is threaded 1/2×28.

The DD4 RIII is a purpose-built AR-platform rifle for shooters who value reliability, modularity, and ambidextrous controls. Its mid-length gas system and 12.5″ RIS III handguard make it well suited for range work, competition, and precision sport shooting where a balance of control and accessory flexibility matters. Built on a robust 7075-T6 receiver and featuring user-friendly ergonomics, this rifle is a straightforward, capable option for informed buyers seeking a high-quality AR variant.

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