Our 5.56 chambered 14.5 inch M4 Profile Carbine Length 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 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 permanently attaching a muzzle device extending the length to 16 inches.
- Length: 14.5"
- Material: 4150 Chrome Moly Vanadium
- Profile: M4
- Finish: QPQ Corrosion Resistant
- Twist Rate: 1:7 inches
- Gas System Length: Carbine
- Gas Block Journal: .750 Inch
- Muzzle: 1/2x28 Threaded
- Weight: 25oz