TacFire BU-300-10 Pistol Upper | .300 Blackout | 10″ Barrel

The TacFire BU-300-10 is a complete AR-platform pistol upper chambered in .300 AAC Blackout. It is built with a 10″ black nitride barrel, a black anodized 7075-T6 aluminum receiver, and an M-LOK handguard. The assembly ships complete with a bolt carrier group and is optic-ready for user-selected optics.

Product Specifications

• The product type is Complete.
• The caliber is .300 AAC Blackout.
• The barrel length is 10″.
• The barrel finish is Black Nitride.
• The receiver material and finish are 7075-T6 aluminum, black anodized.
• The handguard type is M-LOK and the finish is Black.
• The upper ships with a Bolt Carrier Group (included).
• The sighting configuration is None, Optic Ready.
• The stated barrel length range is 10″ to 10.99″.
• The listed weight is 3.95 (unit not specified by manufacturer).
• The product category is AR15 Uppers.
• The finish type on external components is Black Anodized.
• The handguard finish is listed as Black.
• The product includes optic-ready features for user-installed optics.
• The UPC is 729205508325.

This upper is well-suited to compact AR-platform builds intended for short-range precision work and suppressed shooting configurations where .300 Blackout is commonly employed. Its 10″ nitride-treated barrel and robust 7075-T6 receiver make it a practical choice for shooters assembling a compact pistol or SBR-capable upper for range and field use.