Daniel Defense M4A1 RIS II FSP Complete AR-15 Upper Receiver - 5.56 - 14.5" P/W - FDE

The Daniel Defense M4A1 RIS II FSP Complete AR-15 Upper Receiver in Flat Dark Earth is inspired by the USSOCOM SOPMOD Block II, pairing a 14.5" M4-profile barrel with a fixed front sight base and the RIS II quad rail for a classic SOPMOD-style profile.

Features:

• 14.5" cold hammer forged barrel, chrome lined, heavy phosphate coating, 1:7 twist
• Mil-Spec F-marked front sight base, carbine-length gas system
• Surefire SF3P flash hider/suppressor adapter, pinned and welded
• M4A1 FSP RIS II quad rail, Flat Dark Earth
• A1.5 fixed rear sight
• Full-auto M16 bolt carrier group, chrome lined
• Rail-mounted QD swivel attachment with QD swivel
• Bolt carrier group and charging handle included

The Surefire SF3P flash hider doubles as a suppressor adapter and is pinned and welded to the barrel to bring the assembly to a legal 16" length. The fixed front sight base and A1.5 rear sight give this upper the traditional SOPMOD Block II silhouette, while the full-auto-rated bolt carrier group and QD swivel mount round out a build aimed at shooters who want that exact configuration.

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.