Daniel Defense RIS II M4A1 FSP Assembly Black 01-004-08030-006

The Daniel Defense Rail Interface System (RIS II) was designed at the request of the United States Special Operations Command (SOCOM) for the SOPMOD II program. It allows the individual operator to free-float the M203 grenade launcher without additional parts.
The Daniel Defense RIS II M4A1 FSP features a cut out in the top rail to accommodate a standard front sight base on a carbine length gas system.

Daniel Defense Firearms stands at the forefront of firearm innovation, offering a comprehensive selection of premium rifles, accessories, and tactical gear. As a trusted name in the firearms industry, we pride ourselves on crafting products that meet the highest standards of precision, reliability, and durability. Our American-made firearms are engineered for both enthusiasts and professionals who demand excellence in every shot.

Our product lineup showcases advanced technology and superior craftsmanship, featuring rifles renowned for their accuracy and performance. From the battle-tested M4A1 to the precision-crafted bolt-action DELTA 5, Daniel Defense has established a legacy of quality that ensures optimal functionality in the most demanding conditions.

Beyond rifles, our extensive range of accessories and tactical gear allows for complete customization, enabling users to tailor their equipment to their specific needs. Whether for defense, sport, or tactical applications, Daniel Defense provides the tools and support necessary to achieve unparalleled performance.

Committed to customer satisfaction, Daniel Defense offers expert advice, exceptional after-sales service, and a community for firearm enthusiasts to share their passion. Experience the difference with Daniel Defense Firearms—where innovation, quality, and excellence come together to deliver the ultimate shooting experience.