Welcome aboard Ladygunner.
Marlin makes changes to there rimfire rifles and changes the model number to reflect this. Your 995 Marlin takes the model 880/25/995 magazines. It seems like most aftermark magazine manufactures figure there is not enough demand to make high-caps for Marlin rimfires. Here is a link. http://www.hoosiergunworks.com/catal..._id_rifle.html
I had to go online and find a guy in Florida to get couple extra magazines because I didn't when I bought my Kimber 22.
The only thing I can think of is to "continue your slide into Marlinitis" and get a tube fed Marlin be it bolt, semi-auto, or lever.
Hope this helps. Take care 'n Marry CHRISTmas. mike