Brand: Shaw® Barrels

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• Cartridge / Twist
  6mm ARC (^{Advanced Rifle Cartridge}) / 1-7.5"
• Contour
  HBar
• Material / Finish
  416R Stainless Steel / Bead Blast Matte
• Length / Weight
  18 Inches / 2.50 Pounds
• Threads
  5/8-24
• Fluting
  No
• Extension Feed Ramp Cut
  30 cal
• Bolt Type / Headspace
  6.5 Grendel Type II / ARC
  (Bolt not included.)
• Gas Block Diameter
  .750"
  Gas Journal is Dimpled
• Gas System Length
  Rifle

• ---

  Optional Gas Block and Tube
  -Available as an add-on purchase.-
  Superlative Arms
  .750" Adjustable / Stainless / Solid, Set screw
  Melonite Finish (Black)
  Tube is Stainless Steel
  
  Tube is installed in gas block.
  Gas block adjustment screw is set to the Fully Closed position.
  Installation and tuning instructions provided.
  (1) 3/32" x 6" L-Shaped Hex Key, Ball-end Allen / Torx T-15 Tool

• Optional Bolt Carrier Group
  Choose from:
  No BCG (If you want to use your own.)
  or
  Mil-Spec M-16 Nickel Boron
  Bolts are HP/MPI Tested.

^{*Barrels produced prior to January 2026 used M4 feed ramp extensions.}