Sig Sauer P320C 4.6″ Threaded Barrel — 9mm Luger, Nitron

This is a factory-style threaded replacement barrel designed for the Sig Sauer P320 Compact/Carry/XCarry chambered in 9mm Luger. The barrel measures 4.6 inches and features a Nitron finish and a 1/2-28 RH thread pitch for attaching muzzle devices or a thread protector. It is heat-treated for durability and intended to function with factory slides that include a loaded chamber indicator.

Key Specifications

• The cartridge is specified as 9mm Luger.
• The barrel measures 4.6 inches in length.
• The thread pitch is 1/2-28 RH.
• The finish is Nitron.
• The barrel is designed for P320 Compact/Carry/XCarry models with a loaded chamber indicator.
• The product is a factory replacement threaded barrel for compatible P320 slides.
• The barrel includes a thread protector in the package.
• The barrel has been heat-treated for toughness and durability.

This threaded P320C barrel provides a straightforward option for shooters looking to add muzzle device compatibility or tailor barrel length without changing the pistol platform. Built to Sig Sauer factory replacement standards and finished in Nitron, it balances corrosion resistance and wear characteristics with the dimensional fit needed for slides equipped with a loaded chamber indicator. Its threaded end and included thread protector make it practical for those pursuing accessory integration while preserving a factory-style fit and function.