Picture of Daniel Defense DD4 RIIIS, Complete Upper Receiver, 556NATO, 11.5" Barrel, 1:7 Twist, Daniel Defense RIS III 10.5" Handguard, M16 Profile Bolt Carrier Group, Anodized Finish, Black/Flat Dark Earth 23-191-02397-011
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Daniel Defense DD4 RIIIS, Complete Upper Receiver, 556NATO, 11.5" Barrel, 1:7 Twist, Daniel Defense RIS III 10.5" Handguard, M16 Profile Bolt Carrier Group, Anodized Finish, Black/Flat Dark Earth 23-191-02397-011

Manufacturer: Daniel Defense
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SKU: 898194
Manufacturer part number: 23-191-02397-011
UPC: 818773023672
Availability: 5 in stock
Old price: $1,563.00
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Daniel Defense DD4 RIIIS Complete Upper Receiver – 11.5" Barrel, 5.56 NATO

Daniel Defense DD4 RIIIS Complete Upper Receiver – 11.5" Barrel, 5.56 NATO

Daniel Defense DD4 RIIIS Complete Upper Receiver – 11.5” Barrel, Black/Flat Dark Earth

The Daniel Defense DD4 RIIIS Complete Upper Receiver is engineered for shooters who demand precision, durability, and modularity. Built on the proven DD4 platform, this upper combines an 11.5‑inch 5.56 NATO barrel with a fast 1:7 twist rate, a Daniel Defense RIS III 10.5‑inch handguard, and an M16‑profile bolt carrier group. Finished in a sleek black/Flat Dark Earth anodized coating, the upper is ready to slot into any compatible lower for a high‑performance AR‑15 build.

Key Features

  • Complete Upper Receiver Kit – Includes barrel, handguard, bolt carrier group, and all necessary mounting hardware.
  • 11.5‑inch 5.56 NATO Barrel – Optimized for both close‑quarters and medium‑range engagements.
  • 1:7 Twist Rate – Stabilizes a wide range of bullet weights from 55‑grains up to 77‑grains.
  • Daniel Defense RIS III 10.5‑inch Handguard – Lightweight, free‑floating design with M-LOK slots for accessories.
  • M16‑Profile Bolt Carrier Group – Proven reliability, easy maintenance, and smooth cycling.
  • Anodized Finish – Black/Flat Dark Earth – Corrosion‑resistant, low‑glare coating that blends into tactical environments.
  • Precision Machined Components – Tolerances that meet or exceed MIL‑SPEC standards.
  • Ready for Immediate Build – No additional machining required; simply attach to a compatible lower.

Technical Specifications

ModelDD4 RIIIS Complete Upper Receiver
Caliber5.56 NATO
Barrel Length11.5 inches (292 mm)
Twist Rate1:7 (7‑turns per inch)
HandguardDaniel Defense RIS III – 10.5 inches, M‑LOK compatible
Bolt Carrier GroupM16‑profile, anodized steel
FinishBlack/Flat Dark Earth anodized
UPC818773023672
Manufacturer Part Number23-191-02397-011

Why Choose the DD4 RIIIS Upper?

When building a tactical AR‑15, the upper receiver sets the foundation for accuracy, reliability, and ergonomics. The Daniel Defense DD4 RIIIS delivers:

  • Superior Accuracy – The cold‑hammer‑forged barrel and precise twist rate ensure tight groups out to 600 meters.
  • Modular Accessory Integration – M‑LOK slots on the RIS III handguard allow for quick attachment of lights, lasers, grips, and foregrips.
  • Durability Under Fire – Anodized steel components resist wear, corrosion, and the harshest field conditions.
  • Ease of Maintenance – The M16‑profile bolt carrier group is designed for tool‑free disassembly and cleaning.
  • Streamlined Build Process – All critical parts are included, reducing the need for extra purchases and fit‑checks.

Daniel Defense DD4 RIIIS – The Ultimate Upper for 5.56 NATO Builds

Whether you’re a competitive shooter, a law‑enforcement professional, or a tactical enthusiast, the Daniel Defense DD4 RIIIS Complete Upper Receiver offers a balanced blend of performance and reliability. Pair it with a compatible lower, select your preferred trigger, and you’ll have a platform that excels in rapid fire, sustained shooting, and precision engagements.

Explore additional Daniel Defense accessories such as optics, magazines, and rail systems to further customize your build.

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Products specifications
ManufacturerDaniel Defense
CategoryParts
SubCategoryUppers
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