TacFire BU-300-16 | .300 AAC Blackout | 16″ Barrel

This TacFire BU-300-16 is a complete AR-platform upper assembly chambered for .300 AAC Blackout and built around a 16″ black nitride barrel. It ships as a finished upper with a bolt carrier group included and an optic-ready top rail. The assembly pairs a black anodized finish with an M-LOK handguard for modern accessory mounting while maintaining straightforward function.

Common applications for this upper include precision target work at moderate ranges and use in compact hunting configurations where .300 AAC Blackout is appropriate.

Product Specifications

• The manufacturer is TacFire.
• The model/part number is BU-300-16.
• The caliber/gauge is listed as .300 AAC Blackout.
• The barrel measures 16″ for balanced handling.
• The barrel finish is Black Nitride.
• The barrel length range is 16″ to 16.99″.
• The receiver finish is listed as Black Anodized.
• The receiver construction referenced in product copy is 7075-T6 Aluminum.
• The handguard finish is Black.
• The handguards use M-LOK attachment slots.
• The product type is Complete upper assembly.
• Sights are listed as None, Optic Ready.
• The package includes a Bolt Carrier Group.
• The listed weight value is 4.786.
• The UPC is 729205501050.

This TacFire BU-300-16 upper provides a ready-to-install solution for builders and shooters who want a factory-assembled .300 AAC Blackout option with a durable black nitride barrel, M-LOK handguard, and included bolt carrier group. Its configuration supports optics and modern accessories while delivering the standard ergonomics of the AR platform.