Attributes:
- BARREL FINISH: Black Nitride
- CALIBER/GAUGE: 5.56 NATO
- DETAILED DESCRIPTION: TACFIRE SS-BU556-16 556 CMPLTE UPPER 16"
- HANDGUARDS: M-LOK
- MANUFACTURER: TacFire
- MANUFACTURER ITEM #: SSBU55616
- UPC: 729205658860
