Your Cart

  • Your cart is empty


Daniel Defense

Daniel Defense MK18 RIS II Handguard 9.55" for M4A1 Black

Product Code : 815604014052


Mfg Item #: 01-004-08020-006

Available Online
Secure online ordering

Finish Black
Additional Feature 1 Free Floating Barrel Design
Additional Feature 2 Mil-Spec 1913 Picatinny Rails
Additional Feature 3 Continuous Upper Rail

A machined aluminum multi-rail handguard specifically designed for the Special Operations Command (SOCOM) M4A1 carbine, the RIS II enables installation of an M203 40mm grenade launcher, while allowing the barrel to free float. The M203 attaches to the bottom rail quickly and easily, without special tools or additional parts. Full-length, MIL-STD 1913 Picatinny rails provide plenty of space to add other mission-specific accessories as needed. Top rail is designed to mate continously with the receiver rail. All models come with all required mounting hardware, instructions, and three molded polymer, snap-on rail covers. RIS II requires the installation of a low-profile gas block. FSP RIS II models have a cutout in the top rail that allows retention of the standard A2 gas block/front sight tower on a carbine-length gas system. MK 18 RIS II is specifically designed for an M4A1 carbine with Mk18 CQBR (Close Quarters Battle Receiver) upper receiver and 10.3" barrel. Provides barrel free-float and expanded accessory mounting options, while deleting M203 mounting capability. Requires low-profile gas block.


  • 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-Tested, 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)

Restricted Part
Please check with your state regulations for ownership of Restricted Parts. May require documentation.

Additional Feature 1Free Floating Barrel Design
Additional Feature 2Mil-Spec 1913 Picatinny Rails
Additional Feature 3Continuous Upper Rail

Determined at checkout.

Some US states prohibit perceived advertising or marketing of firearm related products to persons under 18 years of age.

Please verify that you are at least 18 years of age.