This .300 Blackout chambered 9 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.
Ballistic Advantage Modern Distinct Rigid Pattern Barrel, 300 Blackout, 9″, 1:7 Twist BABL300004M
