This .300 Blackout chambered 8 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. All NFA/ATF Rules Apply. You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm.

• Length: 8"
• Material: 4150 Chrome Moly Vanadium
• Profile: DRP
• Finish: QPQ Corrosion Resistant
• Gas System Length: Pistol
• Gas Block Journal: .750"
• Twist Rate: 1:7 inches
• Muzzle: 5/8x24 Threaded
• Weight: 19oz