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Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel 365B910NXSOQ-T Color: Black, Finish: Salt Bath Nitride, 17% Off Plus Blazin' Deal w/ Free S&H

Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
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Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
2 of 7 images
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
3 of 7 images
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
4 of 7 images
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
5 of 7 images
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
6 of 7 images
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T
7 of 7 images
Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T

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Questions & Answers
Would this barrel fit in the 365 fuse? Or any 365 in general? Manufacturer Answer

This barrel will not fit the Fuse version of the P365 XMacro. This barrel is designed to fit P365XL slides and replace the factory 3.7" barrel.

by Faxon Firearms, Manufacturer, February 19, 2026
Is 4.3 the length of the barrel including the threaded part? I have a P365 full size, will it fit it has a 4.3 barrel. Manufacturer Answer

Per our manufacturing drawings, this barrel is 4.31" including threaded portion of the barrel.

by Faxon Firearms, Manufacturer, January 14, 2026
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Negative Review
Will not cycle by LJ, Verified Owner, October 15, 2024
The fit and finish are good but for whatever reason this barrel will not cycle on my 365XL regardless of what type of ammo, I’ve tried a dozen different rounds and the most I can get is two rounds before I get a failure to feed. I don’t know if it’...
Read More...
2/2 found this helpful
Most Recent Reviews
Sig P365XL Threaded Pistol Barrel (4.3) by Brian, Verified Owner, February 20, 2026
The Faxon barrel works great. Quality product that was simple to swap out with the factory barrel. Overall, a great value compared to the recent options on the market. The barrel works well with a suppressor. I have not noted any impact on the ac...
Read More...
Most Recent Reviews
Finish wearing off by Zim, Verified Owner, April 17, 2025
Finish is already starting to wear off after 150 rounds not the end of the world but not the best
0/1 found this helpful
Most Recent Reviews
Faxon threaded barrel by Bgdstang91, Verified Owner, August 22, 2025
Great fit and finish. Drop in replacement. Fits perfect with the Faxon compensator.
Most Recent Reviews
Works Perfectly by Javier, Verified Owner, July 23, 2025
It was delivered quickly and works perfectly. I love the o-ring. I'm getting o-rings for my other threaded barrels.
Most Recent Reviews
nice barrel nice finish fits well by John, Verified Owner, February 7, 2025
nice barrel nice finish fits well, no issues firing a few mags. Will report back on accuracy
Read All 11 Reviews

Let's Start Celebrating Already! Save up to 20% on Faxon Firearms Products

See promotional details
Blazin' Deal
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!
Color:
Black
Finish:
Salt Bath Nitride
Fabric/Material:
416-R Stainless Steel
Barrel Length:
4.3 in
Barrel Profile:
Straight
Barrel Twist Rate:
1-10
Flutes:
Straight
Caliber:
9mm Luger
Barrel Material:
416R Stainless Steel
Gun Make:
SIG Sauer
Gun Model:
SIG Sauer P365 XL
Weight:
0.23 lb
Condition:
New
Rifling Profile:
Conventional

Code: 11I-PTB-FMX6-365B910NXSOQ-T

MPN: 365B910NXSOQ-T

UPC: 816341026056

Blazin' Deal
List: $125.00Save 17%
$103.50

Product Info for Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel

Install this Faxon Firearms SIG Sauer P365 XL Threaded Barrel to create a more precise and powerful shooting experience that will expand your shooting capabilities and precision. Faxon Firearms built these Pistol Barrels for drop-in installation with no gunsmithing required. This Faxon Firearms SIG Sauer P365 XL Threaded/Typical Barrel is machined from tough stainless steel with a black nitride or PVD coating that enhances resistance to corrosion and provides added protection against wear and tear for a long service life. Equip this Faxon Firearms SIG P365 XL Threaded Barrel w/ Black Nitride/PVD Coating to upgrade your gun for target shooting sessions or to improve its overall performance at the range.image

WARNING: California`s Proposition 65

Specifications for Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel:

Manufacturer: Faxon Firearms
Color: Black
Finish: Salt Bath Nitride
Fabric/Material: 416-R Stainless Steel
Barrel Length: 4.3 in
Barrel Profile: Straight
Barrel Twist Rate: 1-10
Flutes: Straight
Caliber: 9mm Luger
Barrel Material: 416R Stainless Steel
Gun Make: SIG Sauer
Gun Model: SIG Sauer P365 XL
Weight: 0.23 lb
Condition: New
Rifling Profile: Conventional
Projectile Caliber: .355 Caliber

Features of Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel

  • Straight Fluted, Drop In Profile
  • 11-degree Target Crown

Package Contents:

  • Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel

What firearm models does the manufacturer say Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel is compatible with?

The manufacturer suggests that Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel is compatible with SIG Sauer P365 XL

Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel Orderable Models

List of Orderable Models

  • Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T , MPN: 365B910NXSOQ-T , UPC: 816341026056 , Code: 11I-PTB-FMX6-365B910NXSOQ-T

Faxon Firearms SIG Sauer P365 XL 9mm Threaded Pistol Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T , MPN: 365B910NXSOQ-T-EDEMO , Code: 11I-PTB-FMX6-365B910NXSOQ-T-EDEMO-RE-C
  • USED, Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Nitride, Black, 365B910NXSOQ-T , MPN: 365B910NXSOQ-T-EDEMO , Code: 11I-PTB-FMX6-365B910NXSOQ-T-EDEMO-RE-B
  • USED, Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, TiN PVD, Gold, 365B910NXSOQ-T-TIN , MPN: 365B910NXSOQ-T-TIN-EDEMO , Code: 11I-PTB-FMX6-365B910NXSOQ-T-TIN-EDEMO-DF-C
  • DEMO, Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, TiN PVD, Gold, 365B910NXSOQ-T-TIN , MPN: 365B910NXSOQ-T-TIN-DEMO , Code: 11I-PTB-FMX6-365B910NXSOQ-T-TIN-DEMO
  • Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Chameleon PVD, Multi, 365B910NXSOQ-T-NCR , MPN: 365B910NXSOQ-T-NCR , UPC: 816341026063 , Code: 11I-PTB-FMX6-365B910NXSOQ-T-NCR
  • Faxon Firearms SIG Sauer P365 XL Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, TiN PVD, Gold, 365B910NXSOQ-T-TIN , MPN: 365B910NXSOQ-T-TIN , UPC: 816341026070 , Code: 11I-PTB-FMX6-365B910NXSOQ-T-TIN
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