Sig Sauer P320 9mm 4.6″ Threaded Compact Barrel

This Sig Sauer replacement barrel is chambered in 9mm Luger and measures 4.6 inches in length. It is a threaded compact pistol barrel finished in Nitron and supplied with a thread protector cap. The barrel is intended for use with Sig Sauer compact series pistols and is engineered for durability through factory heat treatment.

Key Specifications

• The caliber is 9mm Luger.
• The barrel length is 4.6 inches.
• The thread pitch is 1/2-28.
• The finish is Nitron (black).
• The barrel is supplied threaded.
• Includes a thread protector cap with the barrel.
• Designed to fit P320 and P250 Compact/Carry style slides and modules as noted by manufacturer references.
• The barrel is factory heat-treated for toughness and durability.

Whether upgrading or replacing a compact pistol barrel, this Sig Sauer 4.6 inch threaded barrel provides OEM fitment features, a durable Nitron finish, and standard 1/2-28 threads for muzzle devices or suppressor mounts. Its compact length and factory treatment make it a practical choice for shooters seeking a reliable threaded barrel option that integrates with Sig compact slides and accessories.