TacFire BU-556-10 Pistol Upper Assembly 5.56x45mm NATO Caliber with 10″ Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carrier Group
February 6, 2026
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TacFire BU9MM4 Pistol Upper Assembly 9mm Luger 4″ Black Nitride Barrel 7075-T6 Aluminum Black Anodized Receiver M-LOK Handguard for AR-Platform
$283.28
TacFire BU9MM4 Pistol Upper Assembly 9mm Luger 4″ Black Nitride Barrel 7075-T6 Aluminum Black Anodized Receiver M-LOK Handguard for AR-Platform
7 in stock
Chambered in 9mm, this pistol upper is completely built and ready to be put on a lower. Includes a Bolt Carrier Group.
| UPC | 729205520242 |
|---|---|
| Manufacturer | TacFire |
| Manufacturer Part Number | BU9MM4 |
| Product Type | Complete |
| Barrel Finish | Black Nitride |
| Barrel Length | 4" |
| Caliber/Gauge | 9mm |
| Sights | Optic Ready |