The Sig Sauer P229 Replacement Barrel (brand part no. BBL22940) is a factory-spec .40 S&W barrel machined from black nitride steel for the P229 platform. Sig Sauer specially heat-treats its factory replacement pistol barrels for toughness and durability, and this one carries the same 3.9-inch length as the barrel the P229 shipped with, so slide cycling and point of impact stay consistent. Because the P229’s .40 S&W and .357 SIG chamberings share the same case head dimensions, this barrel also fits a .357 SIG P229 with no additional parts required, giving owners a simple way to run either cartridge from the same pistol. It’s a straightforward, factory-correct option for P229 owners rebuilding or converting their pistol.

Key Specifications

• Chambered in .40 S&W.
• Barrel measures 3.9 inches.
• Machined from black nitride steel.
• Sold as a genuine Sig Sauer factory replacement barrel for the P229.
• Specially heat-treated for toughness and durability.
• Also fits a .357 SIG P229 with no additional parts required.

Frequently Asked Questions

What caliber is this barrel chambered in? .40 S&W.

Will it work in a .357 SIG P229? Yes, it fits a .357 SIG P229 with no additional parts needed.

Which pistol is this barrel built for? The Sig Sauer P229.

Buy the Sig Sauer P229 Replacement Barrel

Bring your P229 back to factory spec or run .357 SIG from the same pistol. Order it from our Sig Sauer lineup, part of our handgun barrels selection, at our Lubbock, Texas gun shop for fast, direct shipping.