The DD4^™ MK18 RIII^™ AR15-style short-barreled rifle is unmatched in size, weight, and performance. It combines our tried-and-true MK18 with our Daniel Defense RIS III Rail Interface System. This revolutionary 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 popular M-LOK attachment. So, 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—plus seven M-LOK attachment points along the handguard and integral QD swivel attachment points on both sides!

The rest is all MK18, including a 10.3-inch Cold Hammer Forged barrel—the same length found in the MK18 upper most commonly used for CQB operations. An independently ambidextrous GRIP-N-RIP Charging Handle accommodates left- and right-handed shooters, and the rifle comes with our ergonomic Daniel Defense Buttstock and Pistol Grip as well as three (3) low-profile rail ladders made from heat-resistant Santoprene to protect your support hand.  

NFA DISCLAIMER

This firearm is a regulated item by the National Firearms Act (NFA). Please check with your local and state municipalities for any further regulatory requirements. It is the buyer's responsibility to make sure they comply with all NFA rules and applicable laws.

MATERIALS & CONSTRUCTION

• LOWER RECEIVER: Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
• UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
• BARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:7 Twist, 10.3" Government Profile, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested
• GAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 Hardened Steel and Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct Impingement
• MUZZLE DEVICE: Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished
• BOLT CARRIER GROUP: M16 Profile, MP Tested, Chrome Lined, Properly Staked Gas Key
• BUFFER: H Buffer
• SIGHTS: Sold Separately
• HANDGUARD: Daniel Defense 9.5” RIS III, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized
• CHARGING HANDLE: GRIP-N-RIP Charging Handle, Body CNC Machined of 7075-T6 Aluminum, Handles & Latch CNC Machined of 6061-T6 Aluminum, Heavy Duty Stainless Steel Roll Pins, Type III Hard Coat Anodized
• RECEIVER EXTENSION: 6 Position Mil-Spec 7075-T6 Aluminum
• BUTTSTOCK: Daniel Defense Buttstock, Glass Filled Polymer with Soft Touch Overmolding
• PISTOL GRIP: Daniel Defense Pistol Grip, Glass Filled Polymer with Soft Touch Overmolding
• RAIL LADDERS: Three (3) low-profile ladders made from Santoprene, heat resistant to 300° F.
• Made in the USA