Armory Dynamics Specialist Series 7.5" 5.56 Gov Profile AR15 Barrel 5R 4150 CMV SBN
The new line of Armory Dynamics Barrels feature 5R rifling for increased accuracy and easier cleaning of the bore. 5R is an improvement over conventional rifling by changing the shape and configuration of the lands and grooves.
MP: Magnetically Partial Inspected
Length: 7.5 Inch
Material: 4150 Chrome Moly Vanadium
Finish: Black Nitride Corrosion Resistant
Twist Rate 1:7 inches
Muzzle 1/2x28 Threaded
Block Journal .750"
Gas Length: Pistol
Gas Port: .078
MADE IN USA
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.