I'm looking for a good padded holster for my masterpiece for when I'm using it at the range. It won't be stored in it but I want to keep the k22 looking as good as new. Any suggestions? I've searched the forums and couldn't find anything. Thanks

Uncle Mike's are great range holsters. There are several makes of nylon holsters similarly made and priced. New, they're inexpensive, and used, they're a dime a dozen.

IMO, if you're wanting to keep it looking good as new and will be for range use only, don't holster it.
But to answer your question, I guess maybe a cheap nylon and keep it clean???
UM's has been mentioned.