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  1. Sig P226 .357 Caliber Exchange Kit 12rd
    Convert your Sig Sauer P226 from .22LR Classic, 9mm, or .40 S&W to .357 Sig with this conversion kit. Learn More
  2. Sig Sauer P226 .40 Caliber Exchange (X-Change) Kit
    Convert your Sig Sauer P226 from .22LR Classic, 9mm, or .357 Sig to.40 S&W with this conversion kit. Learn More
  3. Sig P226 Elite 40 Caliber Exchange Kit
    Sig Sauer P226 .40 Elite Caliber Exchange Kit. Learn More
  4. Sig P229 357 Caliber Exchange Kit 12rd
    Convert your Sig Sauer P229 Classic .22LR to .357 Sig with this caliber exchange kit. Includes one 12rd magazine and the slide does have night sights. If you need a 10rd magazine, please call us and we'll try to swap the magazine for you (if they are in stock). Learn More
  5. Sig Sauer P229 .40 Caliber Exchange (X-Change) Kit - 12RD
     Convert your Sig Sauer P229 Classic .22LR to .40 S&W with this caliber exchange kit. Includes one 12rd magazine and the slide does have night sights. Learn More
  6. Sig Sauer P229 .40 S&W SAS Legacy Caliber Exchange (X-Change) Kit - 12RD
    Sig Sauer P229 SAS Legacy Caliber Exchange Kit, .40 S&W, 12rd Learn More
  7. Sig Sauer P320 9mm SubCompact Caliber X-Change Kit
    Convert your P320 to 9mm SubCompact with this Caliber X-Change Kit. This is not compatible with .45 ACP P320's but is compatible with all 9mm, .40 S&W, and .357 Sig P320's. Learn More
  8. Sig Sauer P320 Carry .357 Sig Caliber Exchange (X-Change) Kit, 14rd
    Sig Sauer P320 Carry Caliber Exchange Kit, .357 SIG, 14rd Learn More
  9. Sig Sauer P320 Carry .40 S&W Caliber Exchange (X-Change) Kit, 14rd
    Sig Sauer P320 Carry Caliber Exchange Kit, .40 S&W, 14rd Learn More
  10. Sig Sauer P320 Full Size .357 Sig Caliber Exchange (X-Change) Kit, 14rd
    Convert your P320 to a full size .357 Sig. This doesn't work with .45 ACP P320's. Includes grip shell, full slide assembly with SIGLite night sights pre-installed and one 14rd magazine. Learn More

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Sig Sauer's Caliber X-Change Kits let you change the caliber of your centerfire pistol. These are specific to your exact model of pistol. You cannot use a P229 Caliber X-Change Kit on a P226 or vice versa.