
| Brand | Other |
| SKU | — |
| UPC | — |
| Weight | 1.9 pounds |
| Material | 4150 CMV steel barrel with 6061-T6 aluminum receiver and M-LOK handguard |
| Condition | New |
Firearms ship to the FFL dealer you name at checkout. Price and stock are re-checked live when you order.
TacFire BU-556-5 is a complete AR-Platform upper assembly built around a 5.56mm NATO 5-inch black nitride barrel. It’s paired with a black anodized receiver and an M-LOK handguard for straightforward mounting of accessories while keeping the system compact for fast handling.
Upgrade your AR build with the TacFire BU-556-5 complete upper assembly for a compact 5-inch 5.56mm NATO configuration with durable finishes and an M-LOK handguard.