The Shaw AR-15 Heavy Barrel in 6mm ARC with straight fluting (brand part no. AR15HBSSSF186ARC) trims weight from an 18-inch stainless heavy profile while adding surface area that sheds heat during long strings. Shaw Barrels cuts straight flutes along the barrel for a classic precision look and a stiffer-per-ounce tube, and the rifle-length gas system meters the 6mm ARC gently for smooth cycling and less felt recoil. Among rifle barrels, this fluted Shaw favors precision AR builders who want heavy-profile accuracy without all of the heavy-profile weight.

Key Specifications

• The chambering is 6mm ARC.
• The length is 18 inches in a heavy profile.
• The material is stainless steel.
• The fluting is straight-cut, reducing weight and speeding cooling.
• The gas system is rifle-length for smooth cycling and soft recoil.

Frequently Asked Questions

What does the fluting actually do? Straight flutes remove weight from the barrel’s exterior while increasing surface area, so the barrel carries lighter and cools faster between strings.

What else do I need for a 6mm ARC build? A 6mm ARC bolt and magazines; the cartridge otherwise runs in a standard AR-15 upper.

Buy the Shaw 6mm ARC Straight-Fluted Barrel

Heavy-profile stiffness at a lighter carry weight is exactly what this straight-fluted Shaw delivers for a precision 6mm ARC build. Order it from our Lubbock, Texas gun shop for fast shipping.