Daniel Defense – Rail Interface System II (RIS II)

Daniel Defense

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. 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.

  • Available colors: Black, Flat Dark Earth
[contentblock id=woo-product-gsa-callout]

Model Item Number
RIS II – MK18 01-004-16120
RIS II – M4A1 01-004-09157
RIS II – M4A1FSP 01-004-12012




Products are available for DOD, Federal, State and Local Government Agency ordering.
ADS cannot quote or fulfill personal orders.

Web-to-Lead Form

Thank you for your interest in ADS. Unfortunately, we cannot process your request. ADS does not sell to sole proprietors or ship to residential addresses. Please contact Tactical Distributors at 1.866.916.6905 or info@tacticaldistributors.com for further assistance.

When do you need this quote?
Tell us what you're looking for.

Tell us your delivery destination.

Tell us your purchase method or budget.

Campaign Information