Sig Sauer P320 Full Size 9mm Luger 4.7" Barrel - Gold Finish

A genuine Sig Sauer P320 Full Size 9mm Luger 4.7" barrel with Gold Titanium-Nitride finish—the factory replacement your P320 deserves when you need to refresh your slide or swap to a non-threaded configuration. This is a direct-fit replacement engineered and tested by Sig Sauer to the same standards as the barrel that shipped with your pistol, made from quality materials and finished in that distinctive gold PVD coating that looks sharp on the range or in the holster.

The Gold Titanium-Nitride finish isn't just cosmetic. That hard coating increases surface lubricity, helping reduce friction and wear on both the barrel and slide during operation—a functional benefit that adds longevity to your shooting. It's a smart choice if you run high round counts or simply want to extend service life on a well-used P320 Full Size.

One critical thing to know: this barrel is compatible only with non-loaded chamber indicator (non-LCI) slides and pistols. If your P320 has an LCI, or if you own an X5 Length model, this barrel won't fit. Confirm your configuration before ordering to avoid a costly fitment issue. This is also an unthreaded barrel—there's no provision for a suppressor or muzzle device, so it's a straight drop-in for shooters who want factory specifications.

Whether you're building a second upper assembly, replacing a worn barrel, or refreshing your carry gun, a genuine Sig factory barrel is the reliable, hassle-free choice.

Key Features

• Genuine Sig Sauer factory replacement barrel for P320 Full Size pistols
• Gold Titanium-Nitride finish for increased lubricity and corrosion resistance
• 4.7-inch barrel length, unthreaded design
• Compatible with non-LCI slides only; not compatible with X5 Length pistols
• Engineered and tested to Sig Sauer quality standards

Specifications

Model	P320 Full Size
Caliber	9mm Luger
Barrel Length	4.7 inches
Threaded	No
Loaded Chamber Indicator	No
Finish	Gold Titanium-Nitride

Frequently Asked Questions

Is this barrel compatible with my P320?

This barrel fits P320 Full Size models with non-loaded chamber indicator (non-LCI) slides. It is NOT compatible with X5 Length pistols or with LCI-equipped slides. Confirm your P320 configuration before purchasing.

Can I use this barrel with a suppressor or muzzle device?

No. This is an unthreaded barrel, so it cannot accept a threaded muzzle device or suppressor. If you need a threaded option, you'll want a different barrel model.

Why choose a factory Sig Sauer barrel over a generic replacement?

A genuine Sig barrel is engineered to Sig's tolerances and tested for reliability in your P320. Factory barrels ensure proper fit, feeding, and accuracy without the guesswork of aftermarket variants.

What's the benefit of the Gold Titanium-Nitride finish?

The hard PVD coating increases lubricity between the barrel and slide, reducing friction and wear during operation. It's both a functional upgrade and a distinctive look that sets your P320 apart.