Faxon 16″ Gov’t/Socom Profile AR15 Barrel 556 NATO Pinned Gas Block
If you’re looking for a more robust mounting method for your gas block… look no further. Pinning your gas block, in addition to using set screws, gives the user the extra peace of mind that your gas block won’t shift or loosen while firing.
Faxon Firearms barrels are the pinnacle of value. Manufactured 100% 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 undergoes a battery of tests at each operation until it is finished in Nitride, and is finally inspected. All barrels are individually checked for headspace using precision, custom-hardened gauges.
Specifications
- Barrel Material: 4150
- Barrel Type: Button Rifled
- Barrel Caliber: 5.56 NATO
- Barrel Twist: 1:8
- Barrel Length: 16″
- Barrel Profile: Socom
- Barrel Gas System: Mid Length
- Inside Finish: Nitride
- Outside Finish: Nitride
- Muzzle Thread: 1/2-28 TPI
- Gas Block Diameter: .750″
- Gas Block Journal Length: 1.9″
- Barrel Extension: M4
- Weight: 1.65 lbs
- Magnetic Particle Inspected
- 11-degree Target Crown




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