Faxon GUNNER AR-15 Barrel 7.5" .300 Blackout 1/8 Twist Pistol Length Gas Steel Black 15A38P7NGQ

Item No. ARR-574-016
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Brand: Faxon Firearms
MFR #: 15A38P7NGQ--
UPC: 816341023208
Item #: ARR-574-016
Typically ships within 5 to 7 business days
The Gunner profile is a blend of two of the best performing profiles of all time, Gov't and Pencil.

Proving that every once and awhile, the Government can do something right, the Gunner's profile from the extension to the gas block mimics that well-known taper. From there, innovation takes over and the Gunner moves to a .750" gas block journal and our famed pencil profile out front.

Removing the weight from the front of the barrel ensures maximum versatility and keeps material to the rear to maximize heat resistance and mitigate whip.

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 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.

Faxon manufactures all our barrels in Cincinnati, Ohio under our ISO:9001 and AS:9100 quality certifications.

Features and Specifications:
Manufacturer Number: 15A38P7NGQ
Barrel Material: 4150 Certified Gun Barrel Quality Steel
Barrel Type: Button Rifled
Barrel Caliber: 300 BLK
Barrel Twist: 1:8
Barrel Length: 7.5”
Barrel Profile: Gunnger
Barrel Gas System: Pistol
Inside Finish: QPQ Nitride
Outside Finish: QPQ Nitride
Muzzle Thread: 5/8-24 TPI (Threads Per Inch)
Gas Block Diameter: .750"
Gas Port Diameter: .104"
Gas Block Journal Length: 1.9"
Barrel Extension: M4
Weight: .87 lbs
11-degree Target Crown

Installing this product will subject it to NFA laws and doing so without a license is a felony possession of a Class III firearm. Check your local laws.


This product can expose you to chemicals including lead. Which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov