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Questions & Answers
Will this work with Diamondback (DBAR10)? Manufacturer Answer

Yes, this barrel will work in the DBAR10

by Faxon Firearms, Manufacturer, January 14, 2026
Customer Reviews
Helpful Positive Review
great for a north east woods gun by Gator, Verified Owner, November 4, 2023
Perfect barrel length with a flash hider for a decent large frame AR to bring our in the woods. Should pair well with an SLR 13in .308H handguard. If you aren’t using a pistol brace or sbr lower you’ll need to pin and weld, which is fine.
1/1 found this helpful
Helpful Negative Review
Defective barrel by D, Verified Owner, December 26, 2023
Hopefully a one-off, but the barrel Received passes headspace but fails chamber gauge. I think during QA/QC in manufacturing it seems they forgot to check chambering. Unfortunately, I didn't find this out until I had my AR-10 full assembled and at ...
Read More...
2/2 found this helpful
Most Recent Reviews
My Alaskan fishing rifle by Raven 26, Verified Owner, May 27, 2025
I just got my AR10 rifle built and test fired, I made the right choice in acquiring this 13.9 inch .308 barrel and match it with my Aero Percision platform…this AR10 .308 rifle is my bear defense weapon when fishing in Alaska (along with my 10mm fo...
Read More...
Most Recent Reviews
No complaints by Ryno, Verified Owner, March 29, 2025
Good barrel. Have had good luck with most faxon products.
Most Recent Reviews
13.9” Gunner 308 barrel by Les, Verified Owner, April 4, 2024
Great barrel, well finished, had to polish the feed ramps but no big deal. Excellent machine work.
Read All 5 Reviews

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Color:
Black
Finish:
Nitride
Caliber:
.308 Winchester
Barrel Length:
13.9 in
Barrel Profile:
Gunner
Gas System Length:
Mid Length
Gas Block Journal Size-Diameter:
.750 in
Barrel Twist Rate:
1-10
Gun Make:
AR Platform
Gun Model:
AR-10
Weight:
2.13 lb
Firearms Threads Per Inch:
5/8x24

Code: 11I-ATB-FFDB-10A810M139NGQ

MPN: 10A810M139NGQ

UPC: 816341026988

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List: $232.00Save $18.00
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Product Info for Faxon Firearms Duty .308 WIN Barrel

Faxon's .308 continue our fantastic barrel-making with a bit more punch. We've updated our previous Medium-Taper profile taking into account customer feedback, optimizing the barrel to meet the Gunner brand's high standards.image

The .308 Big Gunner profile barrels are the big-brother to our famous 5.56 Gunner barrels. The Big Gunners feature a medium-taper behind the gas block.

WARNING: California`s Proposition 65

Specifications for Faxon Firearms Duty .308 WIN Barrel:

Manufacturer: Faxon Firearms
Color: Black
Finish: Nitride
Fabric/Material: 4150 CMV Steel
Caliber: .308 Winchester
Barrel Length: 13.9 in
Barrel Profile: Gunner
Gas System Length: Mid Length
Gas Block Journal Size-Diameter: .750 in
Barrel Twist Rate: 1-10
Gun Make: AR Platform
Gun Model: AR-10
Weight: 2.13 lb
Firearms Threads Per Inch: 5/8x24

Package Contents:

  • Faxon Firearms Duty .308 WIN Barrel

Faxon Firearms Duty .308 WIN Barrel Orderable Models

List of Orderable Models

  • Faxon Firearms Duty Barrel, AR Platform, AR-10, .308 WIN, 13.9in, Big Gunner, Mid Length, 1-10 Twist, 5/8-24 Thread, Black, 10A810M139NGQ , MPN: 10A810M139NGQ , UPC: 816341026988 , Code: 11I-ATB-FFDB-10A810M139NGQ
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