Daniel Defense M4A1 FSP Upper | 5.56 NATO | 14.5″ Pinned

This Daniel Defense M4A1 FSP URG upper is a complete AR-15 style upper receiver assembly built to mirror SOPMOD Block II features. It pairs a 14.5″ pinned M4 profile barrel with a quad-rail M4A1 FSP handguard and a Surefire SF3P flash hider / suppressor adapter in Flat Dark Earth. The assembly includes fixed sights and a full-auto profile bolt carrier group for compatibility with modern sporting rifle platforms and precision rifle training applications.

Product Specifications

• The manufacturer is Daniel Defense.
• The model is listed as M4A1.
• The finish is Anodized.
• The color is Flat Dark Earth.
• The caliber is .223 REM/5.56 NATO.
• The barrel length is 14.5″ Pinned (16″ OAL).
• The barrel profile is described as M4 profile barrel.
• The barrel type is given as 1:7.
• The front sight is a Mil-Spec F-Marked front sight base.
• The flash hider / adapter is a Surefire SF3P flash hider / suppressor adapter.
• The rear sight is an A1.5 Fixed Rear Sight.
• The bolt carrier group is a M16 profile full auto bolt carrier group.
• The handguard is a M4A1 FSP RIS II picatinny quad rail.
• The weight is listed as 6.1.
• The UPC is 818773021869.

Configured for accuracy and modularity, this upper provides a foundation for shooters who require a reliable AR-style platform for competition or advanced range training. The FDE finish and full-length quad rail deliver a durable, adaptable package ready for accessories and optics.