OMG that looks just like my PS-90!
I have seen posts on how to convert an airsoft chassis to hold a 10/22 but have not gone that route yet. most of the airsoft stocks that were mentioned were under $50 but you have a lot of work to do to get them to fit. not all that difficult but you do have to be handy to get it done.
I do wonder if a screw on compensator (AKA Fake Suppressor) would get a factory barrel to the right length?