Rail Interface System (RIS) II

The Daniel Defense RIS II is an innovative upgrade for the M4A1, M16A4, and MK18 CQB/R. The Daniel Defense Rail Interface System II (DD RIS II) was designed at the request of the United States Special Operations Command (SOCOM) for the SOPMOD II weapons system. SOCOM had a specific requirement for a rail system which would accommodate a M203 40mm grenade launcher and still free float the barrel.  Daniel Defense responded with a product, the DD RIS II, that met this requirement without the use of additional parts or special tools.  This was accomplished by integrating all of the needed parts to mount the M203 into the rail itself.   After years of rigorous testing by Special Forces Operators, Daniel Defense was selected as the Sole Source Provider of the RIS II to SOCOM.  Daniel Defense has and is still delivering thousands of units and they are continuing to be fielded by SOCOM.  The RIS II is available in Black and Flat Dark Earth.

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