5.56 NATO / .223 Remington
Faxon Duty Series 5.56 NATO / .223 Remington barrels are precision-manufactured AR-15 barrels engineered for reliability, consistency, and long service life. 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. Available in a wide range of profiles, barrel lengths, and gas system configurations, Duty Series 5.56 barrels are designed to support demanding sporting, professional, and commercial applications.
