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.

NSN # 1005-01-548-1385

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.

• Material: Aircraft Grade 6061-T6 Aluminum
• Finish: Military Specification Flat Dark Earth Anodizing
• Length: 9.55"
• Width: 2.23"
• Weight 14.1 Ounces
• Inside Diameter: 1.15"
• Made in the USA!

Installation Requirements

Our Bolt Up System Barrel Nut Wrench is required for installation

Warranty Statement

All Daniel Defense rail systems carries a 100% satisfactions guarantee against defects in original materials and workmanship. If your Daniel Defense rail system shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your rail system in the most expeditious and inexpensive manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or in correct installation of other manufacturer’s products. Be sure to retain your sales slip as proof of purchase date when making a claim.