I'm not familiar with this style of 10-22, but if the inner workings are the same as a standard 10-22, here's some advice that I posted on a previous thread:

One of the GREAT things about a Ruger 10-22 is the available modifications you can make to the rifle. Midway USA (www.midwayusa.com) and Volquartsen (www.volquartsen.com) are good companies that I’ve dealt with and been satisfied with their products.

Strongly suggest you get an extended magazine release, an automatic bolt release (if you’re good with a Dremel, you can mod your existing bolt release), and an exact edge extractor. These are the minimum mods that I perform on 10-22’s. I also like a Hogue OverMolded stock mentioned by Damon.

Also, I also found that the Ruger BX-25 magazine clips are far superior to Butler Creek and Black Dog high capacity magazines.