The Faxon Duty Series 16″ Pencil 5.56X45 NATO barrel is machined from 4150 CMV Mil-Spec steel that is stress relieved and air-gauge tested for precision. It features a black nitride finish inside and out for superior wear and easy maintenance, with a 1:8 twist rate and mid-length gas system.
Weighing only 1.20 lbs, this barrel incorporates Faxon’s Pencil contour to minimize forward weight while maintaining accuracy and heat control. The 11° target crown ensures consistent shot placement, and the 1:8 twist stabilizes 55–77 grain bullets for reliable performance across various loads. The mid-length gas system delivers smooth cycling, reduced recoil, and enhanced reliability for all shooting conditions.
Designed for shooters who demand superior accuracy with minimal weight, the Pencil profile enhances agility and balance while retaining precision and reliability. This barrel is a versatile choice for lightweight builds, patrol rifles, and training carbines where speed and endurance matter.




