Each Pinned Gas Block Barrel comes with the pin, as well as a gas block. Gas blocks are hand-tightened to the barrel for shipping.

Faxon Firearms barrels are the pinnacle of value. Manufactured in-house from cradle-to-grave, these barrels are fully stress relieved, air-gauge tested, and 11 degree target crowned to ensure superior accuracy. 

Quality is imbued into our barrels from the start. We start with the best materials, either 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. 

• Barrel Material: 4150 CMV
• Barrel Type: Button Rifled 
• Barrel Caliber: 5.56
• Barrel Twist: 1:8
• Barrel Length: 10.5″
• Barrel Profile:  Pencil
• Barrel Gas System: Carbine
• Inside Finish: Nitride
• Outside Finish: Nitride
• Muzzle Thread: 1/2-28
• Gas Block Diameter: .625″ 
• Gas Block Journal Length: 1.1″
• Barrel Extension: M4 
• Weight:  .9 lbs
• Magnetic Particle Inspected
• 11-degree Target Crown