Attributes:
- BARREL FINISH: Black Nitride
- BARREL LENGTH: 16"
- BARREL MATERIAL: Steel
- CALIBER/GAUGE: 5.56x45mm
- DETAILED DESCRIPTION: ATI 15MS556ML15 MILSPORT UPPER 5.56X45 16 MLOK
- MANUFACTURER: ATI
- MANUFACTURER ITEM #: ATI15MS556ML15
- TWIST: 1:8"
- UPC: 819644027584
