The Daniel Defense DD4 SPRIII is a semi-automatic AR-platform rifle designed around precision-oriented semi-auto performance. It features an 18″ MK12-profile barrel and a rifle-length gas system intended to deliver stable, repeatable performance at extended ranges. The chassis combines a 15″ RIS III handguard with M-LOK and a full-length ARCALOCK bottom panel alongside a Magpul PRS Lite stock for an adjustable, ergonomic fit.
Key Specifications
- The rifle is chambered in .223 REM / 5.56 NATO.
- The barrel measures 18 inches and is described as a MK12-profile, DLC-coated, cold hammer-forged stainless steel barrel.
- The rifling twist is 1:7.
- The gas system is rifle-length.
- The handguard is a 15-inch RIS III with M-LOK and a full-length ARCALOCK bottom panel.
- The stock is a Magpul PRS Lite for adjustable cheek and length-of-pull settings.
- The controls are fully ambidextrous, including safety, charging handle, magazine release and bolt release.
- The included magazine capacity is 32 rounds.
- The unloaded weight is listed as 8.6 lbs.
- The muzzle device is a DD flash suppressor with 1/2×28 thread.
Built for shooters who prioritize a stable, modular platform for precision-focused use, the DD4 SPRIII pairs a proven MK12-profile barrel and rifle-length gas system with modern accessory compatibility. Its ambidextrous controls, adjustable PRS Lite stock and ARCALOCK-capable handguard provide a flexible base for optics, support and mission-specific accessories while maintaining a practical configuration for range work and precision training.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
Related Videos:




