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Questions & Answers
How does this 3.7inch barrel fit the standard p365 when they come standard with a 3.1inch barrel?

The threaded portion sticks out...

by Jason, Verified Owner, December 14, 2025
Does this take +P ammo? Manufacturer Answer

Yes, this barrel can fire +P ammunition however this will increase wear on the barrel and other components of the pistol. We do not recommend or warranty the use of +P+ or "Major" loaded ammunition in this barrel.

by Faxon Firearms, Manufacturer, January 8, 2025
Customer Reviews
Helpful Positive Review
I would like to provide an update to my last review, rescinding my poor rating of the Faxon Sig Sauer P365 Threaded Barrel. After realizing that I was improperly installing the compensator, I re-installed the compensator and timed it correctly. I r...
Read More...
3/4 found this helpful
Helpful Positive Review
great barrel for my ccw by COgbear, Verified Owner, December 4, 2022
I'm a faxon fan, have a few of their barrels on various platforms. This in particular was an important purchase to me as my 365 is my edc. I can rely on this to shoot consistent tight groups of 1-2 inches at up to 7yds (I'm more of a variable than ...
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2/3 found this helpful
Helpful Negative Review
Does NOT work with Herrington Arms HC3652P by Styxx2018, Verified Owner, December 1, 2022
I have a threaded barrel for my G19 Gen5 from Faxon Firearms with a Herrington Arms compensator on it and it works beautifully. I am also a big fan of Faxon Firearms AR15 barrels; they are one of the best! So, it only made sense for me to get a thr...
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1/6 found this helpful
Most Recent Reviews
Barrel of fun 2 by 1300rr, Verified Owner, January 25, 2025
I like the quality of the Faxon brand, stylish with color choices, A+
Most Recent Reviews
Slow delivery time by James, Verified Owner, January 10, 2025
Product was great. From purchase to delivery time was almost 4 weeks. Not good for a leading online retailer.
Most Recent Reviews
P365 threaded barrel by Ralph Zenabi, Verified Owner, December 22, 2024
Great product as advertised this is exactly what I needed for my pistol. I truly recommend this threaded barrel trust me when I say you won't regret it...
Read All 13 Reviews

Faxon Deals: Barrels, Compensators & More!

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:
3.7 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
Weight:
0.21 lb
Rifling Profile:
Conventional
Firearms Threads Per Inch:
1/2x28

Code: 11I-PTB-FMX4-365B910NFSOQ-T

MPN: 365B910NFSOQ-T

UPC: 816341025998

Blazin' Deal
List: $124.00Save 12%
$109.25

Product Info for Faxon Firearms SIG Sauer P365 Threaded Barrel

Faxons Match Series pistol barrels for SIG P365 are machined in-house from stress-relieved 416-R stainless steel. These barrels are then given a black Nitride or PVD coating to increase lubricity, barrel life, and resistance to surface wear. All barrels are conventionally rifled to allow a wider range of ammunition to be used, including cast lead. The barrels drop into factory-spec slides with no gunsmithing required. Better-than-factory tolerances ensure a consistent, tighter lockup than OEM.image

WARNING: California`s Proposition 65

Specifications for Faxon Firearms SIG Sauer P365 Threaded Barrel:

Manufacturer: Faxon Firearms
Color: Black
Finish: Salt Bath Nitride
Fabric/Material: 416-R Stainless Steel
Barrel Length: 3.7 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
Weight: 0.21 lb
Rifling Profile: Conventional
Firearms Threads Per Inch: 1/2x28
Projectile Caliber: .355 Caliber

Features of Faxon Firearms SIG Sauer P365 Threaded Barrel

  • 11-degree Target Crown

Package Contents:

  • Faxon Firearms SIG Sauer P365 Threaded Barrel

Faxon Firearms SIG Sauer P365 Threaded Barrel Orderable Models

List of Orderable Models

  • Faxon Firearms SIG Sauer P365 Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Nitride, Black, 365B910NFSOQ-T , MPN: 365B910NFSOQ-T , UPC: 816341025998 , Code: 11I-PTB-FMX4-365B910NFSOQ-T

Faxon Firearms SIG Sauer P365 Threaded Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • Faxon Firearms SIG Sauer P365 Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, Chameleon PVD, Multi, 365B910NFSOQ-T-NCR , MPN: 365B910NFSOQ-T-NCR , UPC: 816341026001 , Code: 11I-PTB-FMX4-365B910NFSOQ-T-NCR
  • Faxon Firearms SIG Sauer P365 Threaded Barrel, 9mm Caliber, 1-10 Twist, 416-R Stainless Steel, TiN PVD, Gold, 365B910NFSOQ-T-TIN , MPN: 365B910NFSOQ-T-TIN , UPC: 816341026018 , Code: 11I-PTB-FMX4-365B910NFSOQ-T-TIN
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