The Daniel Defense DD4 RIII 5.56 AR-15 rifle is purpose-built for shooters who demand a direct-impingement platform that balances reliability, accuracy, and modularity. Chambered in 5.56 NATO (and compatible with .223 Remington), this 16-inch mid-length gas system rifle delivers the handling characteristics serious shooters expect—fast enough for tactical work, handy enough for hunting, and accurate enough for extended range sessions. Daniel Defense's reputation rests on meticulous attention to detail, and the DD4 RIII proves it in every component, from the chrome-lined barrel to the ambidextrous controls.
The 16-inch 4150 CRMOV chrome-lined barrel features a 1:7 twist rate built for modern ammunition performance and wears a extended flash hider threaded at 1/2x28. The upper and lower receivers are fully ambidextrous—charging handle, mag release, and safety controls all work from either side, eliminating the limitations of right-hand-only rifles. The heart of the gun is a mil-spec tested, chrome-lined bolt carrier group and M16 profile carrier that cycles reliably across a wide range of ammunition and suppressor configurations.
What sets the DD4 RIII apart is the 12.5-inch M-Lok RIS III free-float handguard. Unlike standard quad rails, this aluminum platform is genuinely lighter and easier to control, features integrated M-Lok slots for optics and accessories, and floats away from the barrel for consistent accuracy. The six-position adjustable stock and H buffer deliver a smooth recoil impulse, while the overall length ranges from 32.25 to 35.875 inches—compact enough to maneuver in tight spaces but long enough for a solid sight picture and controls. At 6.52 pounds unloaded, the DD4 RIII sits in the sweet spot: light enough to carry all day, substantial enough to shoot with authority.
This rifle ships with a 32-round magazine capacity and the reliability Daniel Defense is known for. Whether you're building a do-it-all rifle for hunting, defensive use, or the range, the DD4 RIII is a proven platform that adapts to your mission.
| Brand | Daniel Defense |
| Model | DD4 RIII |
| Caliber | 5.56 NATO (.223 Remington compatible) |
| Barrel Length | 16 inches |
| Barrel Material | 4150 CRMOV chrome-lined |
| Barrel Twist | 1:7 |
| Gas System | Mid-length direct impingement |
| Upper Receiver | Ambidextrous |
| Lower Receiver | Enhanced ambidextrous |
| Bolt Carrier Group | M16 profile, mil-spec tested, chrome-lined |
| Charging Handle | Ambidextrous |
| Feed Ramps | M4 |
| Handguard | 12.5-inch M-Lok RIS III free-float, aluminum |
| Stock | Daniel Defense collapsible, 6-position |
| Buffer Assembly | H buffer |
| Muzzle Device | Extended flash hider, 1/2x28 thread pitch |
| Magazine Capacity | 32 rounds |
| Overall Length | 32.25–35.875 inches (adjustable) |
| Weight | 6.52 lbs |
| Finish | Black |
| Model Number | 02-191-10750-047 |
Yes. The DD4 RIII features a fully ambidextrous design, including the charging handle, safety selector, and magazine release. Both left- and right-handed shooters can operate all controls naturally from their preferred side.
Yes. The DD4 RIII is chambered in 5.56 NATO and also accepts .223 Remington ammunition safely.
Yes, the 12.5-inch M-Lok RIS III handguard is free-floating, meaning it doesn't contact the barrel. It uses M-Lok slots for mounting optics, lights, and other tactical accessories.
The DD4 RIII comes with an extended flash hider threaded at 1/2x28, which is a standard suppressor thread pitch. Most suppressors designed for 5.56 NATO can be mounted after removing or replacing the flash hider.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
Daniel Defense
Daniel Defense
Daniel Defense
