Daniel Defense Rifle Barrel Assembly/CMV/CHF/300BLK/1-8/S2W/PST 10.3in. Cold Hammer Forging of barrels has been known for decades to produce the most accurate longest lasting rifle barrels obtainable. The Cold Hammer Forging of barrels is accomplished through intense hydraulic pressure applied at opposing angles by carbide steel hammers. During the hammering process a mandrel is inserted into the bore while the carbide steel hammers shape the barrel around the mandrel creating the chamber the lands and the grooves. In addition to the aforementioned benefits the Cold Hammer Forging process creates a defect free bore and the most consistent chamber possible. All Daniel Defense cold hammer forged barrels are made from start to finish in our state-of-the-art facility located in Black Creek GA. In keeping with our heritage of not cutting corners all cold hammer forged barrels feature a forged chamber and highest quality exterior coating. These barrels will prove themselves to be more accurate and last longer than a barrel that has cut or button rifling. Specifications for Daniel Defense Barrel Assembly 300 Blackout 16in 1:8 Twist: Manufacturer: Daniel Defense Finish: Mil-Spec Heavy Phosphate Chrome Lined Fabric/Material: Chrome Moly Vanadium Caliber: .300 AAC Blackout Barrel Length: 10.3 in Barrel Profile: S2W Gas System Length: Carbine Length Threads per Inch: 5/8x24 Barrel Twist Rate: 1-8 Weight: 2.29 lb Condition: New Package Contents: Daniel Defense Barrel Assembly 300 Blackout 16in 1:8 Twist Daniel Defense Warranty: Guaranteed Satisfaction All Daniel Defense products carry a 100percent satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects Daniel Defense will make every accommodation to fix repair or replace your product in the most expeditious manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer's products. Warranty information and warranties are supplied solely by the manufacturer and not this retailer. This retailer publishes information from the manufacturer for information purposes only and the manufacturer is solely responsible and liable for any warranty information and warranties published by this retailer. Please reference the appropriate manufacturer documents or reach out to the manufacturer directly for full warranty terms and effective dates. Daniel Defense 36-116-06191-018: Rifle Barrel Assembly/CMV/CHF/300BLK/1-8/S2W/PST 10.3in