Daniel Defense RIS II 12.25" free-floating handguard for M4A1 with front sight post cutout. 6061-T6 aluminum construction with black anodized finish and full Picatinny rail system for AR-15 platforms.
Fits: AR-15
The Rail Interface System (RIS II) represents a purpose-built solution developed specifically for professional operators. Originally designed at the request of United States Special Operations Command for the SOPMOD II program, this handguard combines proven engineering with practical functionality.
This handguard excels in both professional and civilian shooting environments. The free-floating barrel design reduces contact between the barrel and handguard, allowing the barrel to vibrate naturally without external interference—a principle that can enhance accuracy potential. The integrated rail system accommodates modern tactical accessories without requiring additional adapters or modifications.
Whether you're building a precision rifle or upgrading an existing platform, the RIS II delivers the quality and functionality expected from a purpose-driven design.