Daniel Defense DD4 SPR III MK12 Special Purpose Rifle 5.56 NATO Black Rifle

The Daniel Defense DD4 SPR III is a semi-automatic precision rifle inspired by the Mk12 Special Purpose Rifle. Its 18-inch stainless steel MK12-profile barrel is chambered in 5.56 NATO, cold hammer forged, DLC coated, and rifled with a 1:7 twist for consistent performance. A rifle-length gas system and MK12 gas block support smooth operation, while the 15-inch RIS III handguard provides M-LOK attachment points, sling mounting locations, and a full-length ARCALOCK bottom panel. The rifle also features a Timney two-stage curved trigger, Magpul PRS Lite stock, fully ambidextrous controls, and a threaded muzzle with a Daniel Defense flash suppressor.

Key features

• 18-inch cold hammer-forged stainless steel barrel with MK12 profile for precision-focused performance
• DLC-coated barrel finish improves resistance to wear and corrosion
• Rifle-length gas system with MK12 gas block supports smooth cycling
• 15-inch RIS III handguard offers M-LOK mounting and sling attachment points
• Full-length ARCALOCK bottom panel supports ARCA and ARCALOCK accessories
• Timney two-stage curved trigger provides a defined, controlled trigger pull

The DD4 SPR III combines a precision-oriented MK12 configuration with modern modularity and ambidextrous controls for demanding range and field applications.