Daniel Defense - Rail Interface System III - RIS III - 13" FSP (FDE)

RAIL INTERFACE SYSTEM III, RIS III 13" FSP (FDE)

The Daniel Defense RIS III Rail Interface System takes the proven design of our two-piece RIS II rails—used by U.S. Special Operations Command (SOCOM) since 2006—and reduces weight while adding versatility by utilizing M-LOK attachment. You get the same proven free-float barrel design, durable aircraft-grade aluminum construction, and an uninterrupted upper rail platform with Mil-Spec 1913 rail of the RIS II. But you also get seven M-LOK attachment points along the handguard, plus integral QD swivel attachment points on both side.

Note: M203 hangers will interfere with pinned & welded muzzle devices.  Daniel Defense suggests contacting a qualified gunsmith for RIII rail installation on any firearm or URG with a pinned & welded muzzle device.

FEATURES:

• Free-Floating Barrel Design for Increased Accuracy
• M-LOK Attachment at 7 Different Positions Along Length of Handguard
• Aircraft Grade 6061-T6 Aluminum Construction
• 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 Rail
• Backward Compatible with RIS II Bolt-Up System—Utilizes Same Barrel Nut & Bolt-Up Plate
• RIS III Upper Rail Is Fully Compatible with RIS II Lower Rail

SPECIFICATIONS

• Product Weight: 16.38 oz.
• Rail Length: 12.96"
• Width: 1.95
• Height: 2.16"
• Inside Diameter: 1.34"
• Barrel Nut: Steel (For Patented Bolt-Up System)
• Gas System: Carbine
• Free Float: Yes
• Continuous Upper Rail: Yes
• Integrated Sling Swivel Attachment Point: Yes