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FAXON MATCH SERIES FLUTED THREADED BARREL FOR P365 XL 9MM
Faxon
$125.00
Description
Pistol Barrels › For SIG® › P365 XL | Works with: EXOS-525 for P365/P365 XL
Fit and Compatibility
This barrel is a direct replacement for the factory barrel in SIG® P365 XL slides. It is machined to tight tolerances for consistent lockup, and it drops into factory-spec slides with no gunsmithing. On some aftermarket slides, minor fitting may be needed.
Slim slide: you may need to remove the O-ring from the barrel before seating it in the slide. That is normal for this platform and does not affect function.
Shipping: threaded barrels cannot be shipped to California.
How It’s Made
Every Faxon pistol barrel starts as a long 416-R stainless barrel blank that Faxon rifles in-house before it is ever cut into pistol barrels. That way the whole blank gets the same rifling, inspection, and stress relief, and every barrel cut from it starts from a qualified bore.
- Drill and ream: 416-R stainless bar gun-drilled and reamed as a long blank
- Button rifle: Button rifled 1:10, six grooves
- Air gauge: Bore and rifling air gauged
- Stress relieve: Stress relieved in-house after rifling, just like Faxon rifle barrels
- Cut and qualify: Blank cut to length and qualify-turned true to the bore
- Turn and mill: Hood, lugs, and Straight Fluted profile turned and milled; 9mm SAAMI chamber and target crown cut; muzzle threaded 1/2x28
- Heat treat: 416-R heat treated to pistol-barrel hardness; 416-R isn’t hard enough for a pistol barrel as bar stock, while 4150 is
- Finish: Salt-bath QPQ nitrided inside and out
- Mark and inspect: Laser-marked and final inspected
Six-groove button rifling is land-and-groove rifling, not polygonal, so it runs jacketed and cast lead bullets. Salt-bath QPQ nitride is a diffusion treatment, not a plating: it hardens the bore and exterior and adds corrosion resistance and lubricity while adding virtually nothing to the dimensions.
How We Inspect It
Faxon pistol barrels are built to a written control plan, and each run is logged on inspection sheets. Here is what this barrel goes through before it ships.
| Burr check | Every barrel inspected for burrs under 10x magnification |
| Hood fit | Every hood run through a go/thru gauge |
| CMM | First and last barrel of every run checked on the CMM |
| First article | Full CMM first-article inspection after any machine maintenance, tool change, or part change, and at least every 30 days |
| Certifications | Material certs checked at receiving; stress relief certified by lot |
Straight Fluted Profile
Straight flutes trim weight and add surface area for cooling while keeping the barrel compact and clean-looking.
What’s in the Box
INCLUDED
P365 XL 9mm barrel
416-R stainless, salt-bath QPQ nitride, inside and out, 4.31″
INCLUDED
Thread protector
For the 1/2x28 muzzle threads.
NOT INCLUDED
Slide, recoil assembly, compensator
Pair a threaded barrel with a Faxon EXOS® compensator or a 1/2x28 suppressor.
Specifications
| Caliber | 9mm Luger (9x19), SAAMI chamber |
| Fits | SIG® P365 XL slides |
| Length | 4.31″ |
| Series | Match Series |
| Profile | Straight Fluted |
| Material | 416-R stainless, heat treated and stress relieved |
| Rifling | Button rifled, 1:10 twist, 6 grooves (land and groove) |
| Inspection | Bore and rifling air gauged |
| Finish | Salt-bath QPQ nitride, inside and out |
| Muzzle | 1/2x28 threaded, target crown; thread protector included |
| Made in | Greater Cincinnati, Ohio, USA |
| FFL | Not required |
What Owners Say
“So far I’ve ran about 50 rounds through it. It’s accurate with no issues and looks good.”
Eric Peters, verified buyer
“I have several Faxon barrels. All of them are top notch for the price.”
Pete, verified buyer
“Excellent fit. Dropped right in with no excess movement.”
Ken Hawkins, verified buyer
Average rating: 4.8 out of 5 stars from 5 reviews on FaxonFirearms.com.
What Reviewers and Dealer Customers Say
“The Faxon barrel works great. Quality product that was simple to swap out with the factory barrel.”
Brian, OpticsPlanet review • Read it ›
“It dropped right in, matched up perfectly with a Faxon comp, and shoots good groups.”
AKDamo, Midwest Gun Works review • Read it ›
“Have had 0 issues with the barrel with approx. 100 rounds ran through it.”
Cam, Midwest Gun Works review • Read it ›
Quotes from third-party reviews and dealer listings; some cover the same barrel in another finish or threaded configuration.
Every Faxon Barrel for the P365 XL
| Barrel | Steel | Muzzle | Finish | MSRP |
|---|---|---|---|---|
| Match Series Straight Fluted (this barrel) | 416-R stainless | Threaded | Black nitride | $125 |
| Duty Series | 4150 CMV | Non-threaded | Black nitride | $96 |
| Duty Series | 4150 CMV | Threaded | Black nitride | $97 |
Add a compensator: Faxon EXOS-525 for P365/P365 XL. Faxon EXOS® comps thread onto the 1/2x28 muzzle; use the included thread locker on the barrel threads only, not on the set screws.
Match Series P365 XL Barrel FAQs
Is this barrel drop-in?
Yes. It is a direct replacement for the factory barrel in SIG® P365 XL slides with no gunsmithing on factory-spec slides. Some aftermarket slides may need minor fitting.
How is it rifled?
Button rifled, 1:10 twist, with six grooves. Faxon rifles a long blank in-house, air gauges the bore and rifling, and stress relieves it before cutting it into pistol barrels.
Can I shoot cast lead bullets?
Yes. Six-groove button rifling is land-and-groove rifling, not polygonal, so it runs both jacketed and cast lead bullets.
What is the difference between Duty Series and Match Series pistol barrels?
Duty Series barrels are 4150 CMV in an OEM-style profile with salt-bath nitride inside and out. Match Series barrels are 416-R stainless, heat treated for pistol-barrel hardness, and come in fluted profiles and PVD color options.
What finish is it?
Salt-bath QPQ nitride, inside and out.
Can I run a suppressor or compensator?
Yes. The muzzle is threaded 1/2x28, the common 9mm thread, and a thread protector is included. You will likely need suppressor-height sights to see over a suppressor.
Can it ship to California?
No. Threaded barrels cannot be shipped to California.
Where is it made?
In Greater Cincinnati, Ohio. Pistol barrels ship without an FFL.
SIG®, SIG SAUER®, P320®, and P365® are trademarks of SIG SAUER, Inc. Faxon Firearms is not affiliated with or endorsed by them; model names are for compatibility only. Flame Fluted® and EXOS® are trademarks of Faxon Firearms. Know and follow all federal, state, and local laws.
Warranty
Faxon Lifetime Guarantee. Covers manufacturing and material defects to the original purchaser. Excludes damage from misuse, neglect, non-standard ammunition, or modifications. Register your product at faxonfirearms.com/product-registration to expedite service. For purchases through dealers or distributors, warranty repairs are handled directly by Faxon Firearms; refunds must be processed through the selling entity. Full policy: faxonfirearms.com/warranty-privacy-terms/Customers Also Shopped These Items
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Reviews
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Awesome barrel!
Dropped right into my xmacro. Had to remove the o-ring and slip it back on, but thats not an issue. Feed ramp is wider than stock barrel from SIG. Looks great and operates perfectly!
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Sig365xl threaded barrel
Excellent fit. Dropped right in with no excess movement. Haven’t fired a round though it yet. Expect it to shoot as well as it fit.
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Great Barrel
I have several Faxon barrels. All of them are top notch for the price. Lock up and feeding are better than stock. Worth buying as an upgrade.
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FAXON MATCH SERIES STRAIGHT FLUTED BARREL FOR P365 XL, 1/10 TWIST, 416-R MATERIAL, BLACK NITRIDE FINISHED, TARGET CROWNED, THREADED
So far I've ran about 50 rounds through it. It's accurate with no issues and looks good. Easy to install, drops right in, looking forward to shooting it more.
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FAXON P365 XL STRAIGHT FLUTED BARREL, THREADED, NITRIDE
Top notch barrel.