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If you're planning to run a suppressor on your P365, this barrel is the foundation you need. SilencerCo engineered this threaded barrel specifically for the Sig P365 platform, and it's built to handle everything from range sessions to suppressed carry work.
Material and Durability
The barrel is machined from 416R stainless steel and finished in black nitride. That combination matters. 416R machines cleanly to tight tolerances, which means better bore consistency and more reliable accuracy. The black nitride finish hardens the surface, resisting wear from firing cycles and the mechanical connection of muzzle devices. You get the corrosion resistance of stainless steel with added surface hardness that extends barrel life during suppressed shooting.
Thread Pattern and Fit
The 1/2×28 thread pattern is the industry standard for 9mm pistol suppressors and muzzle devices, so you won't need adapters or workarounds. This is a drop-in barrel for the Sig P365, meaning you field strip your pistol, swap out the factory barrel, and reassemble. No gunsmithing required. The barrel length is 3.7 inches, matching the design of the P365 platform for proper feeding and cycling.
What Comes With It
You get the barrel and a thread protector cap. That cap protects your threads between uses and keeps things clean when you're testing ammo or between range trips. If you're running a suppressor, you'll also need a booster and piston from SilencerCo or a compatible suppressor manufacturer—just something to know upfront.
Yes. The 1/2×28 thread pattern is the standard for 9mm pistol suppressors. You'll also need a booster and piston from SilencerCo or your suppressor manufacturer to complete the setup, but this barrel will thread on any standard 1/2×28 suppressor without adapters.
Correct. Field strip your P365, remove the factory barrel, install this one, and reassemble. No fitting or modifications needed. It's designed to work with the standard P365 slide and recoil assembly.
Black nitride hardens the barrel surface, improving resistance to wear from firing and mechanical stress during suppressor attachment and removal. It also helps prevent corrosion and fouling buildup, keeping the barrel cleaner between range sessions.
Absolutely. The included thread protector caps the threads so you can shoot without any muzzle device attached. It's a versatile setup whether you're running suppressed or just want the option later.
| UPC | 816413028339 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | AC5367 |
| Caliber/Gauge | 9mm |
| Color | Black |
| Model | |
| Product Type | Accessory-Barrels |
| Shipping Weight | 0.0 |
| Thread Pattern | 1/2"x28 |
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