Daniel Defense DD4 SPRIII 5.56 NATO

The Daniel Defense DD4 SPRIII is built as the evolution of the Mk12 Special Purpose Rifle and is intended for precision semi-automatic applications on the range and in structured precision shooting contexts. The platform combines a purpose-driven barrel profile and a robust receiverset to deliver consistent performance for shooters seeking an accurate AR-style rifle.

The DD4 SPRIII is constructed with CNC-machined 7075-T6 aluminum upper and lower receivers finished with Type III hard coat anodize and a cold hammer-forged stainless steel 18" MK12-profile barrel with a DLC finish. Ergonomics include a Magpul PRS Lite stock and fully ambidextrous controls, while the 15" RIS III handguard with a full-length ARCALOCK bottom panel provides mounting flexibility for accessories and support gear.

Key Specifications

• The caliber is 5.56 NATO.
• The barrel length is 18".
• The barrel is cold hammer-forged stainless steel with an MK12 profile and DLC finish.
• The rifling twist rate is 1:7.
• The gas system length is rifle-length.
• The handguard is a 15" RIS III with a full-length ARCALOCK bottom panel.
• The receivers are 7075-T6 aluminum with Type III hard coat anodize.
• The stock is a Magpul PRS Lite.
• The muzzle thread pattern is 1/2x28.
• The unloaded weight is 8.6 lbs.

For shooters seeking Daniel Defense firearms with MK12-style precision and modular mounting options, buy the Daniel Defense DD4 SPRIII 5.56 NATO online today.

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