Faxon Firearms Duty Series AR15 Barrel 5.56NATO 1:8 Twist 4150 Nitride - 11.5" | Gunner Profile | Mid Length

Out of stock
SKU
15A58M11NGQ

Designed for those looking to save weight while still allowing for the use of a suppressor long-term, the BIG Gunner is ideal for suppressed shooters. All for just about a single pound!

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. 

Behind the gas block will be a Government profile tapering to a shoulder and 1.1" journal .625 gas block. In front of the gas block, the barrel will continue straight to a 1/2x28 muzzle with full shoulder. 

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. 

Technical Specifications

  • Barrel Material: 4150 GBQ Steel
  • Barrel Type: Button Rifled 
  • Barrel Caliber: 5.56 NATO*
  • Barrel Twist: 1:8
  • Barrel Length: 11.5"
  • Barrel Profile: BIG Gunner Hybrid
  • Barrel Gas System: Mid**
  • Inside Finish: QPQ Nitride
  • Outside Finish: QPQ Nitride
  • Muzzle Thread: 1/2-28 TPI (Threads Per Inch)
  • Gas Block Diameter: .625"
  • Barrel Extension: M4
  • Weight: 1.14 lbs
  • Magnetic Particle Inspected!
  • 11-degree Target Crown

*As this barrel is likely to be used in full-auto applications, we are opting to stick with a 5.56 chambering to ensure absolute safety for our customers. 

**Due to the short dwell of the barrel, the gas port will be larger than most barrels. Customers are encouraged to use an adjustable gas block for optimum functionality. 

More Information
SKU15A58M11NGQ
UPC816341020016
MPN15A58M11NGQ
ManufacturerFaxon Firearms
ModelBIG Gunner Hybrid
Weight1.150000
ConditionNew
MaterialSteel
FitsAR-15
Caliber5.56 NATO
Barrel Length11.5"
Barrel Type4150 Steel
Twist Rate1:8"
Threaded BarrelYes
Barrel Thread Pitch1/2x28
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