The Daniel Defense M4A1 FSP RIS II AR-Platform rifle brings the SOCOM SOPMOD II intent to a modern, operator-focused configuration. The RIS II rail interface was developed for SOCOM requirements and designed to support free-floating the M203 grenade launcher without requiring additional parts. This rifle also features the RIS II top-rail cutout to accommodate a standard front sight base on a carbine-length gas system, keeping the front sight solution aligned with the intended setup.

Key features

• Top-rail cutout supports a standard front sight base on a carbine-length gas system
• RIS II rail interface designed for SOCOM SOPMOD II requirements
• 6061-T6 aluminum construction for strength and serviceability
• Flat Dark Earth finish for a consistent field-ready appearance
• Free-float M203 grenade launcher capability without additional interface parts

Built for reliable handling and mission-oriented ergonomics, the Daniel Defense M4A1 FSP RIS II is a purpose-driven AR-Platform rifle configuration.