Faxon Firearms Duty Series AR-10 Barrel - 16" - 8.6 Blackout - Big Gunner Profile - Carbine-Length - 1:3 Twist
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- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by the Faxon Firearms Warranty! what it covers
Product description
Fast-Twist 8.6 BLK Performance in a Big Gunner Profile
Features
- 16″ barrel chambered in 8.6 Blackout
- Fast 1:3 twist rate
- Big Gunner profile balances barrel mass with a practical AR-10 configuration
- Carbine-length gas system with .875″ gas block journal
- 4150 CMV steel with salt bath nitride treatment inside and out
- Button-rifled bore with 11-degree target crown
- M18x1.5 muzzle threads with tapered shoulder and included adapter
- Magnetic Particle Inspected and air-gauge tested
The Faxon Duty Series 16″ 8.6 Blackout barrel brings the cartridge’s fast 1:3 twist to an AR-10-pattern Big Gunner profile with a carbine-length gas system. It uses a standard DPMS Gen 1 .308 barrel extension, a .875″ gas block journal, and nitride-treated 4150 CMV construction for an 8.6 BLK build based around large-frame AR components.
Note: This barrel uses a standard DPMS Gen 1 .308 barrel extension and M18x1.5 muzzle threads with a tapered shoulder. Verify compatibility with your upper receiver, bolt, gas system components, and muzzle device before assembly.
Specifications
- Brand: Faxon Firearms
- Series: Duty Series
- Model: Big Gunner
- MPN: 10A863C16NGQ
- Caliber: 8.6 Blackout
- Barrel Length: 16″
- Profile: Big Gunner
- Twist Rate: 1:3
- Rifling: Button
- Gas System Length: Carbine
- Gas Block Journal: .875″
- Gas Block Journal Length: 1.9″
- Muzzle Thread: M18x1.5 with Tapered Shoulder
- Barrel Extension: Standard DPMS Gen 1 .308, Black Oxide
- Finish: Salt Bath Nitride, Inside and Outside
- Crown: 11-Degree Target Crown
- Inspection: Magnetic Particle Inspected
- Weight: 2.2 lbs
What’s Included
- 1x Faxon Duty Series 16″ 8.6 Blackout Big Gunner Barrel
- 1x Muzzle Shoulder Adapter
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Warranty & returns
Backed by the Faxon Firearms Warranty!
Faxon Firearms Warranty
We do understand that life happens and that often a purchase will need to be returned. Customers may return any product, for any reason, in line with the requirements & policies below.
For any errors on Faxon’s part, after notification from the customer, Faxon will dispatch a Fed-Ex Ground label for the return of the product. Upon receipt and inspection at Faxon, a replacement will be sent to the customer via Fed-Ex Ground with tracking information sent to the customer.
REQUIREMENTS
- Faxon will only refund products purchased directly through Faxon Firearms.
- If you purchased a product through one of Faxon’s authorized dealers and would like to return the product for a refund, you must contact the dealer for your refund.
- Merchandise must be in new condition with original packaging
- Merchandise must be return-shipped in a protective box
- A full refund including shipping if the return resulted from our error, otherwise we will deduct the shipping costs from the refund.
- All product replacements done under warranty can be handled by Faxon directly.
- The customer will receive a refund within 10 business days of our receiving your return. The refund issued in the same form of payment used for purchase.
- No return will be granted for a product that is modified in any way
- No returns for refund after 30 days from the delivery date of the product.
- There will be a 15% restocking fee on all returns.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.












