Daniel Defense 0208806030 DDM4 MK18 5.56x45mm NATO 10.30" 32+1 Black Hard Coat Anodized Rec Flat Dark Earth Anodized Picatinny Handguard Black Polymer SBA3 Pistol Brace

The Daniel Defense MK18 5.56 NATO pistol is a combat-proven 10.3" AR pistol built on the same platform trusted by special operations units for close-quarters work. This configuration pairs Daniel Defense's mil-spec lower and upper receivers with a cold hammer-forged barrel, carbine-length gas system, and SB-Tactical stabilizing brace—delivering a compact, maneuverable package that handles like an SBR without the NFA paperwork. Whether you're running drills at the range, building a home-defense setup, or setting up a truck gun, the MK18's balance of size and shootability makes it a natural choice for shooters who want combat reliability in a pistol format.

Every component reflects Daniel Defense's uncompromising engineering. The upper and lower receivers are 7075-T6 aluminum, CNC machined and hard coat anodized. The barrel is chrome-moly vanadium steel, cold hammer forged with a 1:7 twist and chrome lined bore—HP/MPI tested for consistency. The gas system runs carbine length direct impingement with a low-profile gas block machined from hardened 4140 steel. The handguard is Daniel Defense's RIS II, the same railed platform supplied to USSOCOM, giving you genuine mil-spec accessory real estate in FDE anodize. You get a properly staked M16-profile bolt carrier group, an H buffer, Daniel Defense flash suppressor, and the company's signature pistol grip with soft-touch overmolding and integral trigger guard.

The SB-Tactical SBA3 brace provides a stable, comfortable shouldering point, and the pistol ships with a 32-round Daniel Defense magazine, a full-latch impact case, and comes complete and ready to shoot. All this is assembled in the USA. At 5.95 lbs and 28 5/8" overall, the MK18 doesn't sacrifice ergonomics or control for compactness—you get a gun that runs fast and handles like it was designed in a real-world crucible, because it was.

Key Features

• 10.3" cold hammer-forged barrel, 1:7 twist, chrome lined—proven CQB length
• Carbine-length direct impingement gas system for reliability and speed
• Daniel Defense RIS II handguard with full Picatinny rail coverage for optics and accessories
• SB-Tactical SBA3 stabilizing brace for comfortable, stable shooting without NFA requirements
• Mil-spec 7075-T6 hard coat anodized receivers with indexed feed ramps and flared magazine well
• Daniel Defense pistol grip with soft-touch overmolding and integral trigger guard
• M16-profile bolt carrier group, properly staked gas key
• Daniel Defense flash suppressor, 1/2"–28 TPI muzzle threads
• Includes 32-round Daniel Defense magazine and full-latch impact case
• Manufactured in the USA

Specifications

Frequently Asked Questions

Is the Daniel Defense MK18 pistol legal without an NFA stamp?

Yes. This firearm is configured as a pistol and does not require NFA registration or a tax stamp. It ships with an SB-Tactical SBA3 stabilizing brace, not a shoulder stock, which maintains its legal classification as a pistol under current ATF guidance. Always verify local and state laws before purchase, as regulations vary by jurisdiction.

What's included in the box?

The MK18 ships complete and ready to shoot, with a 32-round Daniel Defense magazine and a full-latch impact plastic case.

Can I add optics and accessories to the handguard?

Yes. The Daniel Defense RIS II handguard features extensive Picatinny rail coverage, allowing you to mount optics, lights, lasers, and other tactical accessories. The upper receiver also includes a Picatinny rail on top for scope or red dot mounting.

What twist rate does the barrel have, and what ammunition should I use?

The barrel has a 1:7 twist rate. This twist is suitable for the 5.56×45mm NATO cartridge and performs well with standard-velocity and heavier loads. Follow your ammunition manufacturer's guidance for your specific rifle and use only 5.56×45mm NATO ammunition.