The spring and plunger is only on the 2289. I want to use my shoulder stocks for ALL my 22XX grips framed airguns. I had a very nice wood one made for me and it fits super tight and barely moves, I'll try the tape/pad at the bottom. I hadn't realised it was supposed to contact the frame and it was hangin out so I removed it Now I have to put some new one in... I'll try some padded tape, it should hold better and I shouldn't have to put a bunch of it.
Thanks for the help. You may think you don't have much to offer but with this single post you just proved yourself wrong. We can all benefit from post like this. Thanks again.