P229 legion X change kit .357

I have a 229 chamber in 9mm but want an X-change kit to convert it into a .357, but had no luck. Anybody know where I could get one or am I just out of luck

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That’s who I would contact first of all. Why reinvent what may already be available. Let us know how it turns out for you.

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I don’t know anything about Sig products. Initially I thought you might be okay because a 357 Sig is 9mm diameter.

Then I saw this in the thread from the posted link.

As others have said, it can’t be done on the stock slide. The breach face is too narrow to accept a 40/357 case. You can go smaller but you can’t go bigger.

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The next challenge might be finding 357 magazines to fit in the 229 frame/magwell?

Another consideration is how long can a frame designed for 9mm hold up to the recoil of a 357?

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This may be old-fashioned, but I suggest calling Sig’s customer support line at (603) 610-3000

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https://www.gunbroker.com/item/958304024
Maybe this can help you out

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