Shaw AR-15 300 HAM'R Threaded Barrel Straight Flute 16in HBAR Profile 1-12 Twist 5/8-24 Thread Matte Stainless. Shaw is now proud to offer complete barrels directly to consumers. Specifications for Shaw AR-15 300 HAM'R Threaded Barrel: Manufacturer: Shaw Color: Steel Finish: Matte Fabric/Material: Stainless Steel Caliber: 300 HAM'R Barrel Profile: HBAR Gas System Length: Mid Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: 5/8x24 Barrel Twist Rate: 1-12 Barrel Material: 416R Stainless Steel Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Package Contents: Shaw AR-15 300 HAM'R Threaded Barrel What firearm models does the manufacturer say Shaw AR-15 300 HAM'R Threaded Barrel is compatible with? The manufacturer suggests that Shaw AR-15 300 HAM'R Threaded Barrel is compatible with AR-15Shaw AR15HBSSSF16HAMR12: AR-15 300 HAM'R Threaded Barrel Straight Flute 16in HBAR Profile 1-12 Twist 5/8-24 Thread Matte Stainless