Experience unparalleled performance with the Faxon Firearms 9310 Steel Bolt Carrier Group for 6.5 Grendel ARC. Engineered from robust 9310 tool steel this bolt carrier group undergoes a salt bath nitride finish enhancing its surface hardness and corrosion resistance beyond traditional chrome and phosphated options. Each bolt is meticulously MPI tested ensuring defect-free materials and exceptional durability. With chamfered 45-degree bolt lugs enjoy seamless reliability even under high pressure loads. The super-finished surface minimizes friction and fouling promoting smoother operation. Designed to meet the demands of full-auto and multi-stage trigger systems the gas keys are secured with grade 8 fasteners and staked for enduring service. Elevate your firearm's performance with this superior bolt carrier group crafted for those who expect more.