The Faxon Firearms Big Gunner 8.6 Blackout 12'' Barrel for AR10 is engineered for precision and performance. Crafted in collaboration with Q this barrel is designed for the innovative 8.6 BLK round. Constructed from stress-relieved bar stock and air-gauge tested it ensures exceptional accuracy with magnetic particle inspection and an 11-degree target crown. Its Big Gunner profile combined with a pistol barrel gas system and Salt Bath Nitride finish offers durability both inside and out. Featuring a M18x1.5 thread with a tapered shoulder adapter this barrel includes an 11-degree target crown and a standard DPMS Gen 1 .308 Extension with Black Oxide finish. The 1:3" twist and 1.9 gas block journal further enhance its performance making it a standout choice for those seeking unmatched accuracy and reliability.