8.6 BLK
Faxon Duty Series 8.6 Blackout barrels are precision-manufactured AR-10 barrels engineered specifically for the unique performance requirements of the 8.6 BLK cartridge. Manufactured in the USA from 4150 CMV steel using traditional button rifling, each barrel is fully machined and stress relieved in-house, air gauge inspected, and 100% MPI tested. Featuring optimized 1:3 twist rates and available in multiple barrel lengths and gas system configurations, Duty Series 8.6 Blackout barrels support demanding sporting, professional, and commercial AR-10 applications.
