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The Faxon Duty Series Threaded Barrel for P365 9mm is engineered from the ground up for serious shooters who demand durability without compromise. Machined in-house at Faxon's Greater Cincinnati, Ohio facility with ISO:9001 and AS:9100 certifications, this barrel combines industrial-grade materials with purpose-built performance.
This barrel steps up from Faxon's Match Series by using 4150 CMV steel instead of 416-R, offering superior strength and stress resistance. That choice matters when you're relying on your carry gun day in and day out. The complete salt bath nitride treatment goes inside and out, creating a hardened surface that shrugs off corrosion, reduces wear, and improves lubricity for smoother cycling. The 1/10 twist rate and target crown ensure consistent accuracy across a broad range of 9mm ammunition loads.
Drop-in installation with no gunsmithing required means you can swap this into any factory P365 slide. The 1/2×28 threaded muzzle opens up suppressor and compensator options, and Faxon's tighter-than-OEM tolerances ensure a lockup that's more solid than your original barrel. Conventional rifling means you can safely shoot factory ammo, lead-cast rounds, and defensive loads without hesitation.
The Duty Series barrel bridges the gap between casual range upgrades and professional-grade components. At 3.1 inches, this barrel maintains the compact profile that makes the P365 so portable while delivering performance that goes beyond factory specs. The target crown ensures consistent bullet release for tighter groups, and the improved feed ramp geometry supports reliable feeding with modern defensive ammunition. This is the kind of upgrade that works quietly in the background, letting you focus on shot placement rather than worrying about your gun.
Yes, this barrel is specifically engineered as a drop-in replacement for factory SIG P365 slides with the 3.1 inch barrel. No gunsmithing is required, though you may need to remove the O-ring during installation due to the slim slide design. This barrel is for the standard P365, not the P365 XL or X models.
The 1/2×28 threading is the standard for 9mm muzzle devices. You can use any quality suppressor, compensator, or adapter with 1/2×28 male threads. Faxon also makes the EXOS-525 compensator which pairs well with their Duty Series barrels.
The Duty Series uses 4150 CMV because it offers superior strength and stress-relief characteristics for hard-use applications. Combined with the complete salt bath nitride treatment, it delivers exceptional corrosion and wear resistance while maintaining durability through repeated firing cycles.
Absolutely. The conventional rifling is designed to safely handle factory jacketed rounds, lead-cast ammunition, and modern defensive loads. Just clean regularly since lead shooting requires a bit more maintenance.
| UPC | 810209950088 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 365A910NFNOQT |
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