TacFire BU9MM4 9mm 4-inch Pistol Upper Assembly

Description

The TacFire BU9MM4 is a complete pistol upper assembly built for AR-platform pistols. It is chambered in 9mm Luger and features a 4-inch black nitride barrel. The receiver is manufactured from 7075-T6 aluminum with a black anodized finish and the handguard uses an M-LOK interface for accessory mounting. This upper ships with a bolt carrier group and is set up to accept optics.

Key Specifications

• This unit is a Complete upper assembly ready to mount on a compatible lower.
• Chambering is 9mm Luger for use with appropriate ammunition and magazines.
• The barrel measures 4-inch for a compact configuration.
• The barrel finish is Black Nitride for enhanced surface durability.
• The receiver material is 7075-T6 Aluminum for strength and weight savings.
• The receiver finish is Black Anodized for corrosion resistance and appearance.
• The handguard style is M-LOK to support modular accessory mounting.
• Handguard finish is Black to match the receiver and barrel finish.
• Sight provision is Optic Ready to accept a variety of red dots and optics.
• This assembly Includes a Bolt Carrier Group as part of the complete package.

Compact and purpose-built, the BU9MM4 provides a practical solution for AR-platform pistol builds and short-barrel applications. Its combination of a 4-inch black nitride barrel, durable 7075-T6 receiver, and M-LOK handguard yields a balanced package for range use, training, and compact AR configurations while remaining optic-ready for modern sighting options.