Description
Built for personal defense, tactical training, duty use, and serious recreational shooting, the Daniel Defense DDM4 M4A1 RII AR-15 5.56 NATO combines legendary SOCOM-proven design with modern refinements and premium components that set it apart from standard AR-15s.
Ready for demanding environments and serious shooters — this is one of the most respected and capable 5.56 rifles on the market today.
At its core is a 14.5-inch Cold Hammer Forged, chrome-lined M4-profile barrel with a 1:7 twist rate, permanently pinned with a Daniel Defense flash suppressor for a legal 16-inch overall length. This setup delivers exceptional accuracy, long barrel life, and consistent performance with virtually any 5.56 NATO ammunition. The proven carbine-length direct impingement gas system ensures smooth, reliable cycling even under sustained fire.
The Daniel Defense DDM4 SB-22 M4A1 RII is a premium, battle-ready AR-15 built to the highest standards of reliability and performance. Featuring the iconic RIS II quad rail system — the same rail trusted by U.S. Special Operations Command (SOCOM) since 2005 — this rifle brings genuine SOPMOD Block II heritage to civilian and professional shooters who demand uncompromising quality.
- Daniel Defense DDM4 SB-22 (Special Build) M4A1 RII premium AR-15 platform built for duty, tactical, and defensive use
- 14.5-inch Cold Hammer Forged barrel for exceptional durability and long-term accuracy
- Chrome-lined M4-profile barrel chambered in 5.56 NATO
- 1:7 twist rate optimized for a wide range of bullet weights
- Permanently pinned flash suppressor bringing barrel length to legal 16 inches
- RIS II Mil-Spec Picatinny quad rail (12.5 inches) for full accessory customization
- Carbine-length direct impingement gas system for proven reliability
- Hard-coat anodized black finish for corrosion resistance and durability
- GRIP-N-RIP ambidextrous charging handle for smooth manipulation
- Ergonomic Daniel Defense pistol grip for improved control and comfort
- Daniel Defense buttstock designed for stability and recoil management
- Full-length rail system for optics, lights, lasers, and accessories
- Built to U.S. Special Operations standards for mission-ready performance
- Designed for reliability under harsh conditions and sustained use
- Ideal for personal defense, professional duty, and tactical training applications


