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Questions & Answers
Will this barrel work with an aero upper with m4 feed ramps? Manufacturer Answer

Yes, this barrel will work with an upper that has M4 feed ramps cut, but the "big bore" feed ramp on the barrel extension will not line up with the M4 cuts. This should not impact the function of the rifle.

by Faxon Firearms, Manufacturer, November 24, 2021
Will this barrel work on BCM upper? Expert Answer

Yes, this barrel will work with an upper that has M4 feed ramps cut, but the "big bore" feed ramp on the barrel extension will not line up with the M4 cuts. This should not impact the function of the rifle.

by Ethan, Gear Expert, January 11, 2022
Customer Reviews
Helpful Positive Review
So it will not work in a standard AR upper. It is also NOT meant for a 308/AR-10 upper. Just trying to clear things up for others. There are other 350L barrels that are not big bore extensions yet still have a single feed ramp - and these will work i...
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1/1 found this helpful
Helpful Positive Review
350 Legend Faxon Barrel by Kacoghill, November 27, 2019
Excellent customer service. Super fast shipping. Competitive price. This barrel was for a build and I must say I am beyond pleased. Very well-made and very accurate with factory ammo. I wanted a light rifle for hunting and the Gunnar contour fit the ...
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13/13 found this helpful
Helpful Positive Review
Avid hunter, Light gunsmithing by Thor, December 1, 2021
Sub MOA 16” Gunner profile 350 Legend barrel ***** the Gunner profile barrel on AR platform rifle with Faxon carbon fiber handguard is the absolute most comfortable rifle I’ve ever carried. I would recommend this ultralight combo to anyone thinking o...
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3/3 found this helpful
Helpful Positive Review
Excellent Barrel for the Money by Gator D, Verified Owner, July 6, 2021
Purchased this barrel for a deer rifle build. Fit & finish were excellent. Accuracy has been very good on the range sighting in the scope and one shot, one deer to the freezer this past deer season.
1/1 found this helpful
Helpful Positive Review
Insanely light by Mark Kennedy, March 25, 2020
Coming in at 1-1/2 pounds, this Faxon pencil barrel is a fantastic way to shed weight for an AR build. It was a very snug fit into the upper receiver, eliminating the need for a bedded compound. I can’t wait to take it hog hunting.
1/1 found this helpful
Helpful Positive Review
350 Legend by CSadler, November 11, 2019
Great barrel for the price. Very accurate but you may have to try a few different brands of ammo to find what shoots the best. Mine shot the federal the best but I only tried the Winchester and Federal.
1/1 found this helpful
Read All 18 Reviews

Final Stretch of 2025 Begins Now! Special Pricing for Faxon Firearms Products

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Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
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Product Info for Faxon Firearms 350 Legend Gunner Nitrited Barrel

Ramp up your rifle's precision and reliability with this Faxon Firearms 350 Legend Gunner Nitrided Barrel. Faxon Firearms constructed these AR15 Barrels from durable 4150 CMV steel with a nitride finish that improves resistance to corrosion and wear. This Faxon Firearms 350 Legend SAAMI Gunner AR-15 Barrel features the Gunner profile which brings the balance of the rifle towards your body which reduces shooting fatigue to keep you on the hunting grounds or at the range all day long without worry. Sharpen your shooting skills and create a more comfortable shooting experience by installing a Faxon Firearms 350 Legend Gunner Profile AR15 Barrel.image

WARNING: California`s Proposition 65

Specifications for Faxon Firearms 350 Legend Gunner Nitrited Barrel:

Manufacturer: Faxon Firearms
Color: Black Nitride
Finish: Nitride
Fabric/Material: 4150 Steel
Caliber: .350 Legend
Barrel Profile: Gunner
Gas System Length: Carbine Length
Gas Block Journal Size-Diameter: .750 in
Threads per Inch: 1/2x28
Barrel Twist Rate: 1-16
Barrel Material: 4150 Chrome Moly Vanadium
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Weight: 1.36 lb
Condition: New
Gas Block Journal Size-Length: 1.9 in
Gun Type: Rifle

Features of Faxon Firearms 350 Legend Gunner Nitrited Barrel

  • Barrel Material: 4150 Certified Gun Barrel Quality Steel
  • Barrel Type: Button Rifled
  • Barrel Caliber: 350 Legend SAAMI
  • Barrel Twist: 1:16
  • Barrel Profile: Gunner
  • Barrel Gas System: Carbine
  • Inside Finish: Nitride
  • Outside Finish: Nitride
  • Muzzle Thread: 1/2x28 TPI
  • Gas Block Diameter: .750"
  • Gas Block Journal Length: 1.9"
  • Barrel Extension: Big Bore
  • Weight: 1.36 lbs
  • Magnetic Particle Inspected!
  • 11-degree Target Crown

Package Contents:

  • Faxon Firearms 350 Legend Gunner Nitrited Barrel

Faxon Firearms 350 Legend Gunner Nitrited Barrel Orderable Models

List of Orderable Models

  • Faxon Firearms Barrel, AR-15, 350 Legend, 20 in, Gunner, 1-16 Twist, Nitrided, Black, 15AL16C20NGQ , MPN: 15AL16C20NGQ , UPC: 816341025271 , Code: 11I-ATB-VNEG-15AL16C20NGQ
  • Faxon Firearms Barrel, AR-15, 350 Legend, 16 in, Gunner, 1-16 Twist, Nitrided, Black, 15AL16C16NGQ , MPN: 15AL16C16NGQ , UPC: 816341025264 , Code: 11I-ATB-VNEG-15AL16C16NGQ

Faxon Firearms 350 Legend Gunner Nitrited Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • Faxon Firearms Barrel, AR-15, 350 Legend, 12.5 in, Gunner, 1-16 Twist, Nitrided, Black, 15AL16P12NGQ , MPN: 15AL16P12NGQ , UPC: 816341025257 , Code: 11I-ATB-VNEG-15AL16P12NGQ
  • USED Faxon Firearms Barrel, AR-15, 350 Legend, 16 in, Gunner, 1-16 Twist, Nitrided, Black, 15AL16C16NGQ, EDEMO1, Condition Fair, Other , MPN: 15AL16C16NGQ-EDEMO1 , Code: 11I-ATB-VNEG-15AL16C16NGQ-EDEMO-OT-D
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