TacFire BU3008 | .300 AAC Blackout 8″ Complete Upper

The TacFire BU3008 is a factory-built complete AR-15 upper chambered in .300 AAC Blackout and finished in black. It pairs an 8-inch barrel with a pistol-length gas system and an 8-inch free-float handguard for compact handling and reliable function. The upper ships with a bolt carrier group (BCG) and an A2-style muzzle device, and it is threaded 5/8×24 to accept common muzzle accessories.

Common applications include suppressed shooting and short-barrel carbine builds where a compact, purpose-specific upper is desired.

Product Specifications

• Includes a complete AR-15 upper receiver ready for installation on a compatible lower.
• Chambered in .300 AAC Blackout for compatibility with .300 Blackout ammunition.
• The barrel measures 8 inches for compact, short-range performance.
• The barrel uses a twist rate of 1:8.
• Features an 8-inch free-float handguard for accessory mounting and consistent barrel harmonics.
• Utilizes a pistol-length gas system to tune cycling with short barrels.
• The muzzle is threaded 5/8×24 for standard .30-caliber muzzle devices and suppressor-ready attachments.
• Includes an A2-style muzzle device as the installed flash/compensator option.
• Finished in black for a low-profile appearance.
• Includes a bolt carrier group (BCG) as part of the complete upper assembly.
• The manufacturer’s model/part reference is BU3008.
• The product UPC is 729205511387.

This TacFire complete upper is a straightforward option for someone building a compact .300 AAC Blackout carbine or assembling a short-barrel project with suppression in mind. It pairs compact geometry with standard AR-15 interfaces and includes the core components needed to complete an upper assembly install.