| Brand | Other |
| SKU | — |
| UPC | — |
| Material | Black nitride steel barrel; anodized aluminum receiver/handguard (exact alloy not specified) |
| Condition | New |
Other
TacFire BU-556-16 Complete Upper Assembly 5.56x45mm NATO 16" M-LOK Black
★ — (0 reviews)
In Stock
$336.36
Firearms ship to the FFL dealer you name at checkout. Price and stock are re-checked live when you order.
TacFire BU-556-16 is a complete AR-platform upper assembly built around a 16" 5.56x45mm NATO black nitride barrel with a black anodized receiver and an M-LOK handguard for modern accessory mounting.
Key features
- 16" 5.56x45mm NATO barrel with black nitride treatment
- Black anodized receiver for a consistent dark finish
- Complete upper assembly configuration for AR-platform builds
- M-LOK handguard for direct accessory attachment
If you’re assembling or upgrading an AR with an M-LOK front end and a nitride-treated 16" barrel, the TacFire BU-556-16 complete upper is a straightforward option.
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