


Product Description
The Faxon Firearms Duty Series 20-inch Gunner Profile barrel is built to balance durability, handling, and accuracy for AR-15 builds chambered in 5.56 NATO. Faxon’s Gunner contour blends the strength of a Government profile with the weight savings and fast handling of a Pencil profile, shifting the rifle’s balance back toward the shooter for reduced fatigue during long training days, competition, or hunting. Manufactured in-house in Cincinnati, Ohio, each barrel is stress relieved, air-gauge tested, and finished with a corrosion-resistant black nitride treatment inside and out. A button-rifled 1:8 twist and 11-degree target crown help deliver consistent accuracy, while final inspection and headspace verification support dependable function.
Product Highlights
- Gunner profile contour blends Government-strength rigidity with Pencil-profile maneuverability for an excellent balance point.
- 20-inch 5.56 NATO chamber with 1:8 twist rate helps stabilize a wide range of common bullet weights for practical accuracy.
- Black nitride finish inside and out improves corrosion resistance and makes cleaning easier after high round counts.
- Rifle-length gas system supports a smoother recoil impulse and reliable cycling in full-length AR-15 setups.
- Made in the USA with stress relief, air-gauge testing, and headspace checks for quality control and consistency.
Specs
- Brand: Faxon Firearms
- Manufacturer Part Number: 15A58R20NGQ
- UPC: 816341020214
- Caliber: 5.56 NATO
- Barrel Length: 20 in
- Barrel Profile: Gunner
- Material: 4150 CMV (chrome-moly-vanadium) steel
- Rifling: Button rifled
- Twist Rate: 1:8
- Gas System Length: Rifle length
- Finish (Inside/Outside): Nitride
- Muzzle Thread: 1/2-28
- Gas Block Diameter: 0.625 in
- Gas Block Journal Length: 1.9 in
- Barrel Extension: M4
- Crown: 11-degree target crown
- Weight: 1.67 lb (approx.)
- Country of Manufacture: USA (Cincinnati, Ohio)
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