Complete 16" upper receiver with cold hammer forged barrel, mid-length gas system, and 12.5" RIS III rail. Ambidextrous charging handle and M16 bolt carrier group included.
The DD4 RIII represents the pinnacle of modern rifle engineering, combining proven military specifications with refined ergonomics for both competitive shooting and defensive applications.
The 16-inch cold hammer forged barrel is constructed from 4150 chrome moly vanadium steel with a 1:7 twist rate, optimized for modern ammunition weights. The mid-length direct impingement gas system delivers a notably smoother recoil impulse compared to carbine-length systems, reducing shooter fatigue during extended shooting sessions while maintaining reliability across various ammunition types.
The 12.5-inch RIS III handguard represents evolution of the legendary RIS II platform developed for SOCOM applications. This lightweight aluminum rail system features:
The ambidextrous Grip-N-Rip charging handle provides intuitive operation for shooters of any hand preference. The included M16 profile bolt carrier group is chrome lined, properly staked, and MP tested for reliability. The pinned low profile gas block and Daniel Defense flash suppressor complete a cohesive, combat-proven package.
This upper receiver group ships complete and ready to mate with any mil-spec lower receiver.