Shaw AR-15 300 Blackout Threaded Barrel Spiral Flute 16in HBAR Profile 1-7 Twist 5/8-24 Thread Matte Stainless. Shaw is now proud to offer complete barrels directly to consumers. Specifications for Shaw AR-15 300 Blackout Threaded Barrel: Manufacturer: Shaw Color: Steel Finish: Matte Fabric/Material: Stainless Steel Caliber: .300 AAC Blackout Barrel Length: 16 in Barrel Profile: HBAR Gas System Length: Carbine Length Gas Block Journal Size-Diameter: .750 in Threads per Inch: 5/8x24 Barrel Twist Rate: 1-7 Barrel Material: 416R Stainless Steel Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Package Contents: Shaw AR-15 300 Blackout Threaded Barrel What firearm models does the manufacturer say Shaw AR-15 300 Blackout Threaded Barrel is compatible with? The manufacturer suggests that Shaw AR-15 300 Blackout Threaded Barrel is compatible with AR-15Shaw AR15HBSSHF16BLKT: AR-15 300 Blackout Threaded Barrel Spiral Flute 16in HBAR Profile 1-7 Twist 5/8-24 Thread Matte Stainless