Hitman Industries AR-15 .45 ACP Medium Rifle Barrel 8.5 inch 1-16 Twist 5/8x24 Thread Nitride Black

Hitman Industries AR-15 .45 ACP Medium Rifle Barrel 8.5 inch 1-16 Twist 5/8x24 Thread Nitride Black. There are a few ways to rifle a barrel but here at hitman we prefer button rifling for accuracy. With our 7 step quality Control (QC) process we continue set ourselves apart from other barrel manufacture s. We utilize black nitride QPQ to protect our barrels against the elements. All barrel extensions are black nitride QPQ or Nickel boron (NIB) for maximum protection. Specifications for Hitman In