Sig Sauer P320 Full Size 9mm Luger 4.7" Replacement Barrel - Black Nitride

The Sig Sauer BBLMODF9 is an OEM replacement barrel purpose-built for the Sig Sauer P320 Full Size pistol. Chambered in 9mm Luger with a 4.7" length, this barrel is engineered to match the original equipment that ships on the full-size P320, making it a direct replacement for worn, damaged, or upgraded barrels.

The barrel is precision-machined from steel and treated with a durable black nitride finish. This surface treatment offers excellent corrosion and wear resistance while creating a low-friction bore and exterior surface, contributing to consistent feeding, reliable extraction, and easier cleaning over the life of the part. The black nitride finish also gives the barrel a uniform, matte appearance that matches Sig Sauer's factory slide profile.

Designed specifically for the full-size P320 variant, this barrel is not intended for use in P320 compact, subcompact, or carry-size pistols, which use shorter barrels. The replacement barrel ships with no sights installed, allowing the end user to configure the sighting setup as desired. Backed by Sig Sauer's reputation for quality and precision, this is the same OEM part trusted by P320 owners worldwide.