Daniel Defense AR15 Mk18 RIS II (BLACK)

Use the Daniel Defense LITE / RIS II wrench to install barrel nut.
Stock Status:

Out of stock


Daniel Defense is the Sole Source Provider of the RIS II to the United States Special Operations Command!

The Daniel Defense MK18 RIS II is designed to work specifically on the MK18 CQBR!

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. SOCOM had a specific requirement for a free float M203 solution and Daniel Defense responded, designing a revolutionary product to meet the government s need.

The RIS II MK18 is NOT compatible with an M203.

The Daniel Defense RIS II is to be used in conjunction with the MK12 Low Profile Gas Block.

The Daniel Defense RIS II free-floating Picatinny rail systems are designed to allow individual operator to quickly, and without special tools, mount M203 Grenade Launcher and precisely mount SOPMOD accessories to host weapon without effecting point of impact.

The Daniel Defense RIS II is an innovative upgrade to the M4 platform and is available for commercial purchase directly from Daniel Defense or any authorized distributor.

Materials & Construction

Precision CNC machined from Aircraft Grade Aluminum and Military Specification Type II Hard Coat Anodized in SOCOM approved Flat Dark Earth.

  • Aircraft Grade Aluminum
  • Military Specification Flat Dark Earth Anodizing
  • Weighs only 14.5 ozs!
  • Length: 9.5 Inches
  • Width: 2.2 Inches
  • Made in the USA!
***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit www.p65warnings.ca.gov.***

1 Review

  • 5
    Mk 18 RIS II

    I bought this rail for my 10.5 inch SBR. I bought it after using a Troy TRX Extreme 9 inch. It is much more solid than the TRX, without any flex when pulled tight by a sling. The fit and finish are great. Bottom line you get what you pay for and this is one of the best rails on the market