Caliber:223 Rem/5.56 NATO, Barrel Length:16, Barrel Material:4150 CMV, Barrel Finish: Salt Bath Nitride, Barrel Thread Pitch: x 28, Twist Rate:1:7, Gas System: Carbine-Length Gas System, Upper Receiver:7075 Forged A4 Flat Top, Bolt Carrier Group: Salt Bath Nitride Bolt Carrier Group, Bolt: MPI Tested Bolt, Muzzle Device: A2 Birdcage Flash Hider.
Attributes:
Attributes:
- BARREL FINISH: Black Nitride
- BARREL LENGTH: 16"
- BARREL LENGTH RANGE: 16" to 16.99"
- BARREL MATERIAL: Chrome Moly Vanadium
- CALIBER/GAUGE: 5.56x45mm NATO
- DETAILED DESCRIPTION: BUSHM 0040017BLK QRC UPPER ASSEMBLY
- HANDGUARD FINISH: Black
- HANDGUARDS: M-LOK
- MANUFACTURER: Bushmaster
- MANUFACTURER ITEM #: 0040017BLK
- MODEL: QRC
- RECEIVER FINISH: Black Hard Coat Anodized
- SERIES: Complete Upper
- TWIST: 1:7"
- TYPE: Complete
- UPC: 604206201324
