This .300 Blackout chambered 8" Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant finish and QPQ coated M4 feed ramp extension. Specs- 750" Gas block journal, gas system length- pistol and a DRP profile. All NFA/ATF Rules ApplyYou 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.
Specifications:

Caliber or Gauge	.7.62x35mm
Length	8"
Model	AR Barrels
Twist	1:7"
Sights	None
Bore Type
Finish	QPQ Corrosion Resistant
Type	8" Barrel
Chokes Included
Choke Configuration
Barrel Type	Pistol Length
Ammo Type
Barrel Features	QPQ coated M4 Feed Ramp Extension