Daniel Defense M4A1 Rail Interface System II, RIS II (Black)

Details

 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 Daniel Defense RIS II allows  the individual operator to free float the M203 grenade launcher without  additional parts. As important, special tools are not required to mount  the M203 grenade launcher. This was accomplished by integrating all of  the needed parts to free float the M203 into the rail itself. The Daniel  Defense RIS II is to be used in conjunction with the MK12 Low Profile  Gas Block.  

FEATURES

• Aircraft Grade 6061-T6 Aluminum
• Free-Floating Barrel Design For Increased Accuracy
• Two-Piece Design for USSOCOM Allows For the Attachment of an M203 Grenade Launcher When Lower Rail Section is Removed.
• Battle-Proven, 6-Bolt Bolt-Up System Securely Attaches Handguard to the Upper Receiver
• Grade 8 Military Specification Fasteners
• Uninterrupted Upper Rail Platform & Mil-Spec 1913 Picatinny Rails
• Mil-Spec Type III Hard Coat Anodized Finish (FDE or Black)

Specifications

  More Information   Product Weight 17.7 oz   Rail Length 12.25"   Width 2.23"   Height 2.25"   Inside Diameter 1.15"   Barrel Nut Steel (For Patented Bolt-Up System)   Gas System Carbine   Free Float Yes   Continuous Upper Rail Yes   Integrated Sling Swivel Attachment Point No   Manufacturer Daniel Defense