The Faxon Duty Series 10.5″ Gunner 300 BLK barrel combines exceptional balance and durability for short, versatile builds. The Gunner profile merges the robustness of a Gov’t contour with the lightweight maneuverability of a Pencil profile—ideal for CQB, suppressed, or compact rifle setups. Machined from 4150 CMV steel and button rifled with a 1:8 twist, each barrel is fully stress relieved and treated with salt bath nitride inside and out for superior corrosion resistance and long service life.
The .750″ gas block journal, pistol-length gas, and 5/8×24 threads integrate smoothly with modern .30-cal devices and suppressor systems—making it a top choice for do-it-all 300 BLK builds. This lightweight 10.5″ 300 Blackout barrel features a 1:8 twist and nitride finish. suppressed setup or a versatile defensive platform, this barrel delivers the reliability and precision that define Faxon’s reputation.
Every Faxon barrel is air-gauge tested, MPI inspected, and headspace checked for reliability and accuracy straight out of the box. Faxon barrels are manufactured in-house in Greater Cincinnati, Ohio using vertically integrated machining and inspection processes. All Faxon Firearms products are backed by our Limited Lifetime Warranty.
