TacFire BU-556-5 | AR-15 Complete Upper | 5″ Barrel

This TacFire BU-556-5 complete AR-15 upper is chambered for .223 REM/5.56 NATO and is supplied ready to be mounted on a compatible lower receiver. It comes with a 5″ black nitride barrel, a black anodized 7075-T6 aluminum receiver, and a M-LOK handguard for accessory mounting. A complete bolt carrier group is included so the upper can be installed and used for range work or compact builds.

Product Specifications

• The caliber is .223 REM/5.56 NATO.
• The barrel length is 5″.
• The barrel finish is Black Nitride.
• The barrel length range is 5″ to 5.99″ as listed by the manufacturer.
• The handguards are M-LOK compatible.
• The handguard finish is Black.
• The receiver finish type is Black Anodized.
• The receiver material is listed as 7075-T6 Aluminum in the product name.
• The sights are listed as None, Optic Ready.
• The product type is Complete upper assembly.
• The item includes a Bolt Carrier Group.
• The UPC is 659725496003.
• The listed weight is 3.2 (unit not specified by source).

This compact upper is suited for short-barrel AR pistol builds and for range training where maneuverability is prioritized. Its M-LOK handguard and optic-ready layout allow users to configure the upper for a variety of lawful sporting and target applications while keeping the overall package lightweight and straightforward.