Daniel Defense DD4 RIIIS 11.5" Complete Upper Receiver – Precision & Performance
The Daniel Defense DD4 RIIIS Complete Upper Receiver is engineered for superior durability, accuracy, and reliability in 5.56 NATO platforms. Built around an 11.5” Cold Hammer Forged Government Profile barrel, this upper features a lightweight RIS III 10.5” handguard with M-LOK attachment points, modeled after the legendary SOCOM RIS II two-piece handguard. With a carbine-length gas system, M16 profile bolt carrier group, and GRIP-N-RIP charging handle, this upper receiver delivers battle-proven performance for tactical, defensive, and duty applications.
Key Features:
- Mil-Spec Upper Receiver: CNC machined from 7075-T6 aluminum with M4 feed ramps for enhanced reliability.
- 11.5” Cold Hammer Forged Barrel: Made from Chrome Moly Vanadium Steel, featuring a 1:7 twist for optimized stabilization of heavier rounds.
- Carbine-Length Gas System: Includes a pinned low-profile gas block, CNC machined from 4140 hardened steel with a Mil-Spec phosphate coating.
- RIS III 10.5” Handguard: Lightweight and M-LOK compatible, offering modular attachment options while reducing weight.
- Daniel Defense Flash Suppressor: 17-4 PH stainless steel with a salt bath nitride finish for enhanced corrosion resistance and reduced flash signature.
- M16 Profile Bolt Carrier Group: Mil-Spec, MP tested, chrome-lined, with a properly staked gas key for reliable function.
- GRIP-N-RIP Charging Handle: Engineered for ambidextrous use, enhancing ease of operation.
Uncompromising Quality & Reliability
The DD4 RIIIS Upper Receiver Group is designed for hard-use applications, making it an ideal choice for military, law enforcement, and civilian shooters. Its Cold Hammer Forged barrel ensures exceptional longevity and accuracy, while the RIS III handguard provides a secure platform for optics, lasers, and accessories without excess weight.
Why Choose Apollo Defense Systems?
At Apollo Defense Systems, we provide top-tier firearm components for shooters who demand precision, durability, and peak performance. The Daniel Defense DD4 RIIIS 11.5" Upper Receiver is a premium upgrade for serious professionals and enthusiasts looking for a battle-proven, high-performance AR-15 upper.
Upgrade your rifle with the Daniel Defense DD4 RIIIS Upper – available now at Apollo Defense Systems.
