These barrels are properly stress relieved after rifling, air-gauge tested, and individually checked for headspace. BKF quality control system ensures they are dimensionally correct and bores fall well within their individual tolerance ensuring superior accuracy. This barrel is designed to fit a 7″ handguard (BKF, Mod-0 and Mod 1 handguards are the perfect compliment) with minimal gap between the handguard and a suppressor.

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.

Additional Info

• Length: 8.375″

• Weight: 13.97 ounces

• Caliber: 9mm

• Twist Rate: 1:10 RH

• Muzzle Thread: 1/2-28

• Material: 4150 CMV

• Finish: Blacknitride+™ by H&M

• Profile: Straight

• 11° Target Crown

• 100% American Made

PRODUCT SKU: BKF-AR9-8.375