Faxon Duty Series .308 WIN 16″ Pencil Nitride AR-10 Barrel

The Faxon Duty Series 16-inch pencil-contour barrel is built for AR-10 platforms where weight savings and consistent performance matter. It features a button-rifled bore, 1:10 rate of twist and an 11-degree target crown, and is finished with a salt-bath nitride process. Barrels are manufactured in-house, fully stress relieved, air-gauge tested, and checked for headspace with precision hardened gauges. Threaded muzzle and a mid-length gas system support a range of configurations for field, range, and precision applications.

Key Specifications

• The barrel is chambered for .308 / 7.62 NATO.
• The barrel length measures 16 inches.
• The rifling rate is 1:10″ twist.
• The contour is a pencil profile for reduced weight.
• The finish is salt-bath nitride.
• The barrel weight is 1.78 lbs.
• The gas system length is mid-length.
• The gas block size/gas port setting is designed for a .750 gas block size with mid-length gas port.
• The muzzle is threaded with 5/8-24 threads.
• The muzzle features an 11-degree target crown to protect the rifling at the exit.

This barrel pairs lightweight handling with repeatable manufacturing controls — stress relief, air-gauge testing, and individual headspace inspection — to deliver consistent accuracy in a compact 16-inch package. Its pencil contour and nitride finish make it a practical choice for users seeking a balanced, reliable AR-10 barrel for range work, sporting use, or utility roles where reduced weight and dependable function are priorities.