I have two model 422's. I find them super easy to clean.
1) Just pull slide back 1 inch. Insert a spent .22lr brass into opening on top. (So it doesnt reclose with spring pressure.)
2) remove spring retaining clip in top of slide
3) take off slide while removing spring/guide rod.
This is as far as you need to strip it down. Easiest .22lr pistol I have ever used.
I have owned all the Rugers, Brownings etc, and sold them all off to acquire these 2.
If you have trouble field stripping a 422, you probably need help replacing a roll of toilet paper.