The Daniel Defense DD4 MK18 RIII (brand part no. 0219113295067) is an AR-pattern pistol chambered in 5.56 NATO with a 10.3-inch cold-hammer-forged barrel, built for shooters who want a compact, maneuverable rifle-caliber pistol. Daniel Defense wraps the barrel in a 9.5-inch RIS III free-floating M-LOK rail finished in Flat Dark Earth, and an SB Tactical SBA3 brace gives the pistol a stable, adjustable rear interface without a shoulder stock. Fully ambidextrous controls and a carbine-length direct-impingement gas system round out the platform, with the muzzle threaded 1/2×28 for muzzle devices. This configuration ships without a magazine. Among semi-auto handguns, this DD4 MK18 RIII pistol favors shooters who want a compact, rifle-caliber pistol built on Daniel Defense’s proven MK18 platform.

Key Specifications

• The chambering is 5.56 NATO.
• The barrel measures 10.3 inches, cold-hammer-forged.
• Runs a carbine-length direct-impingement gas system.
• The muzzle is threaded 1/2×28.
• Wrapped in a 9.5-inch RIS III free-floating M-LOK rail.
• Finished in Flat Dark Earth (FDE).
• Fitted with an SB Tactical SBA3 adjustable brace.
• The controls are fully ambidextrous.
• Ships without a magazine included.

Frequently Asked Questions

Does this pistol include a magazine? No, this configuration ships without a magazine.

What brace does it use? An SB Tactical SBA3 adjustable brace.

Is the muzzle threaded? Yes, 1/2×28 for standard AR-pattern muzzle devices.

Buy the Daniel Defense DD4 MK18 RIII Pistol

A compact, rifle-caliber pistol built on Daniel Defense’s proven MK18 platform is exactly what this DD4 MK18 RIII delivers. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.