If this is the classic P229 then I should be able to change the caliber by buying a buying and installing a .357 barrel. Is this weapon caliber interchangeable in that way.

Question

If this is the classic P229 then I should be able to change the caliber by buying a buying and installing a .357 barrel.  Is this weapon caliber interchangeable in that way.

James G. · Answer

Yes with the Sig X-change caliber kit.

Jason T. · Answer

Yes, they have conversion kits for it. You can make it a .357

Wendell O. · Answer

40 and 357 sig share the same size breech face size since 357 sig is basically a necked down 40. You can switch between these two calibers with just a simple barrel swap. Magazines are the same.

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If this is the classic P229 then I should be able to change the caliber by buying a buying and installing a .357 barrel. Is this weapon caliber interchangeable in that way.