Tacfire AR-15 Complete Upper 5.56 NATO 5" Barrel Black with Bolt Carrier Group

The Tacfire AR-15 Complete Upper 5.56 NATO 5" Barrel in Black with Bolt Carrier Group is a ready-to-install upper receiver assembly designed for operators building or upgrading an AR-platform carbine. This complete upper arrives fully assembled and headspaced, requiring only mounting to a compatible lower receiver to create a functional rifle. The included bolt carrier group eliminates the need for separate sourcing and ensures proper cycling and reliability out of the box.

The 5-inch barrel in 5.56 NATO delivers the velocity needed for effective terminal performance while maintaining a compact profile suitable for vehicle operations, close-quarters environments, and training drills. At this barrel length, 5.56 NATO rounds achieve velocities that support standard mil-spec ballistics and barrier performance. The matte black finish resists corrosion and glint, meeting the aesthetic and functional standards of tactical configurations. As a complete upper assembly, this unit simplifies the build process—no additional machining, alignment, or headspacing work is required before installation onto a lower receiver.

This upper is suited for law enforcement patrol rifles, civilian self-defense builds, training platforms, and range carbines where a short-barreled configuration is advantageous. The included bolt carrier group ensures compatibility with standard AR-15 uppers and lowers, making this an efficient option for operators who prefer validated pre-assembled components over sourcing individual parts. Whether building a first AR platform or adding another configuration to an existing lower, this complete upper delivers verified function with minimal additional setup.