The TacFire Pistol Upper Assembly, 9mm Luger, 4-inch Black Nitride Barrel, 7075-T6 M-LOK (brand part number BU9MM4) is a complete, ready-to-run upper for a compact 9mm AR pistol build. TacFire tops the 4-inch Black Nitride barrel with a black-anodized 7075-T6 aluminum receiver and an M-LOK handguard, and it ships completely built with a bolt carrier group already installed. Optic-ready with no iron sights to work around, it drops directly onto any compatible 9mm AR lower for a subcompact, easy-to-maneuver build.

Key Specifications

• Chambered in 9mm Luger.
• Barrel length of 4 inches for a compact pistol build.
• Barrel finish: Black Nitride for corrosion resistance.
• Receiver machined from 7075-T6 aluminum, black anodized.
• M-LOK handguard for lightweight accessory mounting.
• Optic-ready, no iron sights included.
• Ships completely built and ready to drop onto a lower.
• Includes a bolt carrier group.

Frequently Asked Questions

Does this upper include a bolt carrier group? Yes, it ships completely built with a bolt carrier group installed.

Does it include iron sights? No, it is optic-ready with no iron sights.

Buy the TacFire Pistol Upper Assembly, 9mm Luger, 4-inch Black Nitride Barrel, 7075-T6 M-LOK

Build a compact 9mm pistol with an AR15 upper ready to drop onto your lower. Order it from our Lubbock, Texas gun shop for fast, insured shipping.