I picked up an old Benjamin 25 caliber air gun ,that I put a scope on. Its very accurate ,but the problem is with the stock. Its a very nice piece of walnut and I don't want to cut anything,but how can I raise the stock to make it more comfortable to shoot with the scope. I tried one of those Bear Creek kits ,but it does not fit very well and always has to be adjusted. Thank for all answers

I've used the Triple K brand from Cabelas in the past but their fit and quality have changed over the last couple years.

If I were buying now I think I'd get one of the ITC brand wetsuit material from Amazon Amazon Link

Leather ITC from Amazon,Link Here