Converting my wife's 365 to 365X. Want to still be able to use the 365 flush 10rd mags. Is there any kind of spacer that I can buy seperate? I saw the 10rd 365X mags that Sig has listed and they have a spacer that may work buy I just need that spacer. Getting an couple 12rd mags but she would still like to use those 10rd mags for range training. Please advise.

There are these metal adapters: https://inceptiondefense.com/p...nd-magazine-adapter/

Or these cheaper plastic ones: https://tactical.dev/products/...l-10-round-magazines

Or there are some even cheaper 3D printed plastic adapters available on eBay. For example: https://www.ebay.com/itm/335471973333

(Though I'm not sure I'd trust 3D printed baseplates to stand up to being dropped.)

Roger that, thanks

Living in a communist state, I've used a few of the tactical developement adapters and they are great!

I don't mean to dissuade you in any way but with the price of the extensions/spacers, you could sell the 10 round mags, to recoup some of the price and just buy more x/xl mags. I recently bought some Sig factory 12 round XL mags for $36/mag plus shipping a few days ago and then another x3 for only $33/mag shipped today.