Faxon Firearms is proud to partner with Q in the development of barrels for their ground-breaking new round, 8.6 Blackout. Designed with an impressive 1:3 twist rate, the 8.6 Blackout barrels efficiently channel rotational energy to enhance on target energy, ensuring superior performance. Like all Faxon barrels, these 8.6 Blackout barrels are machined from raw bar stock in our Greater Cincinnati facility. The barrels are fully stress relieved, air gauge tested, magnetic particle inspected and 11 deg target crowned for superior accuracy. Each barrel undergoes a rigorous series of tests throughout the manufacturing process, culminating in a final inspection to ensure the highest standards. Faxon barrels are individually checked for headspace using precision custom hardened gauges and are backed by the Faxon lifetime guarantee, promising lasting reliability and performance. Equipped with a carbine-length gas system for dependable performance and balanced recoil management Bead-blasted finish for a smooth, matte surface and reduced glare M18x1.5 tapered shoulder muzzle thread for a precise and secure fit, providing improved alignment and stability for muzzle devices and suppressors Gas block diameter 7/8 inches Designed with a 1.9 inches L gas block journal Standard DPMS Gen 1, .308 extension with a black oxide barrel extension Magnetic particle inspected for quality assurance Precision 11 degree target crown for improved accuracy and consistent bullet trajectory