RTR 6mm ARC 18"

Craddock Precision

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Introducing Craddock Precision's RTR 18" 6mm ARC barrel, crafted in response to the resounding demand from the 6ARC community. Don't miss out on this sought-after barrel—secure yours before they vanish!


  • 18" in length
  • Rifle Gas System (Gas Tube Included)
  • 6mm ARC Chamber
  • 40.7 oz
  • 1:7 Twist Rate
  • Enhanced / Enlarged Feed Ramps
  • Button Rifled Match Grade SS Blank
  • .750" Gas Block
  • Threads 5/8x24 with a 11° target crown
  • Multiple Fluting Options (Straight, Spiral, and Diamond)
  • Multiple Finish Options to choose from

Adding fluting or Cerakote to your barrel? Expect a 1-4 week turnaround for precision work and coating perfection.

For Cerakote Flutes Polish OD finish option, specify your desired Cerakote Color/Code in the checkout notes.