Daniel Defense DD4 RIII 5.56 NATO 16" - AR-15 Rifle

Professional-grade in 5.56 NATO and uncompromising in construction — the Daniel Defense DD4 RIII 5.56 NATO 16" is built for users who demand the same reliability from their rifle that Special Operations personnel depend on daily.

Chambered in 5.56 NATO and running a mid-length direct impingement system, the Daniel Defense DD4 RIII 5.56 NATO 16" is a semi-automatic AR-15 rifle engineered for consistent performance across a wide range of applications.

Duty-Grade Reliability: Every component is selected and tested to perform under sustained fire, adverse weather, and the kind of use that reveals flaws in lesser designs. This 5.56 NATO platform is built for the worst case.

Precision From the Factory: Tight manufacturing tolerances and premium barrel specifications deliver consistent, sub-MOA-capable accuracy that holds up as round counts climb into the thousands.

Trusted by Professionals: This platform or its commercial equivalent is actively used by military, law enforcement, and special operations units who select their equipment based on performance, not marketing.

Lifetime Investment: Premium materials and construction mean this rifle will outlast budget alternatives by a significant margin — a firearm that genuinely improves with a proper maintenance schedule.

• Caliber: 5.56 NATO
• Barrel Length: 16"
• Gas System: Mid-Length Direct Impingement
• Handguard: M-Lok Free-Float
• Muzzle Threading: 1/2x28
• Magazine Capacity: 30-Round
• Finish: Type III Hardcoat Anodized
• Origin: Made in the USA

Fully compatible with standard AR-15 lower receivers and STANAG-pattern 5.56 NATO magazines. Works with mil-spec carbine buffer systems, standard lower parts kits, and the broad ecosystem of AR-15 aftermarket accessories.

Built from 7075 aluminum with a Type III Hardcoat Anodized finish, this AR-15 rifle holds up to sustained use without sacrificing dimensional accuracy or function.

Built for professional duty use, serious home defense, and competition. Trusted by law enforcement, military personnel, and competitive shooters who won't settle for anything less.

Daniel Defense produces premium AR-15 rifles trusted by elite military and law enforcement units globally, backed by a limited lifetime warranty and Made in USA manufacturing.