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 governments need.
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 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.
Specifications and Features:
For carbine length gas systems
Free Floating Barrel Design
Uninterrupted Upper Rail Platform
Hardened Steel Barrel Nut
Grade 8 Military Specification Fasteners
Mil-Spec 1913 Picatinny Rails
Material: Aircraft Grade 6061-T6 Aluminum
Finish: Military Specification Anodizing
Weight 14.1 Ounces
Inside Diameter: 1.15"
Made in the USA
The DD Bolt Up System Barrel Nut Wrench is required for installation.