.25 caliber barrel for condor

I was wondering if anyone knew where i could get a .25 caliber barrel for a condor ready to install wanted to go 9mm but i am not going to get very many shots in that caliber please let me know if any of you know anything i tried to google it but had zero luck finding just a barrel and i dont want to buy a whole rifle when i can just do a barrel swap from 22 caliber to 25 thanks