Daniel Defense DD RIS III M-LOK Rail FSP in FDE

MSRP: $501.00
(You save $15.00 )
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Daniel Defense RIS III M-LOK Rail with FSP

DD all-new RIS III rail system is modeled after the proven RIS II developed for SOCOM, but now in M-LOK for extreme durability with less weight.

The Daniel Defense RIS III Rail Interface System takes the battle-tested 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.

Stellar Performance with Unmatched Versatility: The Daniel Defense RIS III Rail Interface System is a game changer for firearms enthusiasts, featuring a pioneering design that combines the battle-tested heritage of the RIS II rails with a lighter and more flexible M-LOK attachment system. This product is trusted by the U.S. Special Operations Command, and is renowned for its free-float barrel design that optimizes accuracy. With its seven M-LOK attachment points located along the handguard, this rail system provides the versatility you need for diverse tactical situations.

Superior Construction and Durability: Crafted from aircraft-grade 6061-T6 aluminum, the Daniel Defense RIS III Rail Interface System is incredibly durable and reliable. Its Mil-Spec Type III hard coat anodized finish, available in both FDE or black, ensures it's designed to weather any situation. The system also incorporates a secure 6-bolt bolt-up system that reliably fastens the handguard to the upper receiver. This strong construction delivers confidence and peace of mind in the heat of any battle scenario.

Intuitive Design and Compatibility: The RIS III Rail Interface System is equipped with an uninterrupted upper rail platform and integral QD swivel attachment points, making it a highly adaptable system that meets your exact needs. Furthermore, the RIS III is fully compatible with the RIS II lower rail, enabling M-LOK attachment on the upper and Picatinny attachment on the lower. It's this level of design intuitiveness that sets the RIS III apart from the competition.


  • Free-Floating Barrel Design for Increased Accuracy
  • M-LOK Attachment on 7 Surfaces Along Length of Handguard
  • Two-Piece Design for USSOCOM Allows for Attachment of M203 and M320 Grenade Launchers when Lower Rail Section is Removed (RIS III 12.5 & 13.0 FSP Only)
  • Aircraft Grade 6061-T6 Aluminum Construction
  • Battle-Tested, 6-Bolt Bolt-Up System Securely Attaches Handguard to the Upper Receiver
  • Grade 8 Military Specification Fasteners
  • Uninterrupted Upper Rail Platform
  • Integral QD Swivel Attachment Points with Limited Travel
  • Mil-Spec Type III Hard Coat Anodized Finish (FDE or Black)
  • 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, Enabling M-LOK attachment on Upper and Picatinny Attachment on Lower


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