Which 22 conversion works on Sig 1911s?

[CNobbe]

Am about to buy a Sig STX 1911, and am wondering which 22 conversion kits are known to work on Sig 1911 frames. I'd assume they're own 1911 conversion would work on their own guns, but am curious if Advantage Arms or the Kimber kit will work with the Sig.

Thanks for your assistance!

 

[dekibg]

GSG 1911 coversion kit

I bought the one above for $130 at Palmetto State Armory around Christmas

http://palmettostatearmory.com/index.php/review/product/list/id/11616/

currently out of stock, but keep looking, much cheaper than other ones, and it works just fine