Faxon Firearms Gunner Duty Series 5.56 NATO 11.5" Black Nitride 4150 CMV

Faxon Firearms Gunner Duty Series 5.56 NATO 11.5" Black Nitride 4150 CMV. Designed to save weight while still allowing for suppressor use long-term. Behind the gas block is a Government profile tapering to a shoulder and a 1.1" journal with a .625" gas block. In front of the gas block, the barrel continues straight to a 1/2x28 muzzle with full shoulder. Faxon Firearms barrels are the pinnacle of value. Manufactured in-house, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. Materials are certified 4150 Mil-Spec steel or 416-R Stainless. From there, each barrel goes through a battery of tests at each operation until finished in Nitride and final inspected. All barrels are individually checked for headspace by precision custom hardened gauges.