Shaw AR-15 338 ARC Threaded Barrel 8.5in No Flute HBAR Profile 1-8 Twist 5/8-24 Thread Matte Stainless. Shaw is now proud to offer complete barrels directly to consumers. Specifications for Shaw AR-15 338 ARC Threaded Barrel: Manufacturer: Shaw Color: Steel Finish: Matte Fabric/Material: Stainless Steel Caliber: .338 ARC Barrel Profile: HBAR Gas System Length: Rifle Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: 5/8x24 Barrel Twist Rate: 1-8 Barrel Material: 416R Stainless Steel Flutes: No Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Package Contents: Shaw AR-15 338 ARC Threaded Barrel What firearm models does the manufacturer say Shaw AR-15 338 ARC Threaded Barrel is compatible with? The manufacturer suggests that Shaw AR-15 338 ARC Threaded Barrel is compatible with AR-15Shaw AR15HBSS83ARC: AR-15 338 ARC Threaded Barrel 8.5in No Flute HBAR Profile 1-8 Twist 5/8-24 Thread Matte Stainless