If you’re looking for a direct-fit, high-performance upgrade for your SIG SAUER P320 Compact, this threaded barrel is the precise component you need. Designed for the 9mm P320C platform, this 4.625-inch copper barrel provides a longer, threaded muzzle that allows you to attach compensators, muzzle brakes, or suppressors. The primary benefit is enhanced versatility, giving you the option to customize your pistol’s performance and shootability. Miami Shooters Supply delivers this quality aftermarket barrel with the fast shipping you expect.
Key Features
- Precision machined from solid copper bar stock for exceptional durability and a unique aesthetic.
- Features 1/2×28 threading, the standard for most 9mm muzzle devices.
- Extended 4.625-inch length protrudes beyond the factory P320C slide for accessory attachment.
- Drop-in design requires no permanent modification to your pistol’s slide or frame.
- CNC-machined to strict tolerances for reliable feeding and consistent lockup.
- Distinctive copper finish provides superior corrosion resistance and reduces friction.
Built For
This SIG SAUER barrel is ideal for the P320C owner who wants to build a functional competition or duty-ready pistol. It’s perfect for shooters adding a compensator for flatter recoil or those pursuing a suppressor host platform. The build quality makes it a reliable choice for both regular range use and serious defensive applications.
Specifications
- Caliber: 9mm Luger
- Material: Solid Copper
- Thread Pitch: 1/2″x28 TPI
- Overall Length: 4.625 inches
- Compatibility: SIG SAUER P320 Compact (P320C) models in 9mm
- Finish: Natural Copper
FAQ
Is this a true drop-in barrel for my P320C?
Yes, it is engineered as a direct replacement for your factory barrel. Installation requires no gunsmithing; simply swap it into your existing slide assembly.
Will I need a different holster with this threaded barrel installed?
Likely, yes. The added length and potential muzzle device will not fit standard holsters for the unthreaded P320C. You will need an open-ended or specifically designed holster for a threaded P320C.


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