Daniel Defense DD4 RIS III Complete AR-15 Upper Receiver - 5.56 - 11.5"

The Daniel Defense DD4 RIS III Complete AR-15 Upper Receiver in black pairs a 11.5" government-profile barrel with the 10.5" lightweight RIS III M-LOK rail, a precision-built foundation ready for your lower.

Features:

• 11.5" government-profile barrel, chrome lined, 1:7 twist
• Mil-Spec heavy phosphate coating
• Carbine-length gas system with pinned low-profile gas block
• Daniel Defense flash suppressor
• 10.5" lightweight RIS III M-LOK handguard
• M16-profile bolt carrier group
• GRIP-N-RIP charging handle
• Black Type III hard coat anodized finish
• Bolt carrier group and charging handle included

The RIS III rail trims weight from the earlier RIS II design while keeping its M-LOK attachment points and 6061-T6 aluminum construction, and the pinned low-profile gas block pairs with the carbine-length system for consistent cycling on this 11.5" barrel. The M16-profile bolt carrier group is standard on every Daniel Defense complete upper for added reliability margin.

Because this 11.5" barrel measures under 16", this complete upper is intended only for an AR pistol or a legally registered short-barreled rifle — attaching it to a standard rifle lower without the correct configuration violates federal law.

Daniel Defense has supplied duty-grade AR-15 rifles and components to U.S. special operations units, law enforcement, and civilian shooters for over two decades, and this complete upper carries that same mil-spec pedigree.