Product Description Upgrade or restore your pistol with the Sig Sauer factory barrel designed for the P229 platform. This steel barrel features a durable black nitride finish and is specially heat-treated for toughness and long service life. It also supports caliber conversion between .357 SIG and .40 S&W when used with the appropriate P229 configuration, giving your handgun added versatility while maintaining factory-fit performance. Product Highlights Genuine Sig Sauer factory barrel engineered for the P229 pistol 3.90-inch barrel length for P229 standard-length slide assemblies Black nitride steel construction for corrosion resistance and durability Special heat treatment improves toughness and wear resistance Supports P229 caliber conversion between .357 SIG and .40 S&W (configuration dependent) Specs Brand: Sig Sauer Model Compatibility: Sig Sauer P229 Caliber: .357 SIG Barrel Length: 3.90 in Material: Steel Finish: Black Nitride Manufacturer Part Number: BBL229357 UPC: 798681214631 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.