Shaw Barrels AR-15 6mm ARC 18" Spiral Fluted HBar Stainless Barrel

The Shaw Barrels AR-15 6mm ARC Spiral Fluted Barrel is a precision drop-in 18 in replacement barrel for the AR-15 platform, chambered in 6mm ARC. Shaw Barrels machines each barrel from 416R stainless steel and finishes it with a non-glare bead blast matte surface, producing a rugged component suited to custom builds and barrel upgrades.

Cut on a heavy HBar contour with spiral fluting, this barrel sheds weight while retaining the rigidity and heat capacity needed for sustained fire. The 1:7.5" twist with 6-groove rifling is engineered to stabilize 6mm ARC projectiles, delivering consistent accuracy for the modern AR-15 shooter. Approximate weight is 2.20 lbs.

Designed as a direct-fit upgrade for the AR-15, this Shaw Barrels barrel offers builders a straightforward path to assembling a modern 6mm ARC rifle.