I'm surprised that no one has mentioned this yet...
A PMR 30 would be an interesting choice.
Reports on early ones were pretty problematic, but it looks like Kel Tec sorted out their issues a while ago.
Super light (gun loaded with 30 rounds is about 1.25 lbs), very high capacity, easy triggers and they are a Blast to plink with. Mine is a good, accurate plinker but not a target gun. Shoots better than I expected though so I'm happy with it.
40 grain bullets run around 1300 fps so its a lot like shooting a .22 rifle. A little louder than most people expect, and you get muzzle flash but NBD.
A far cry from a Ruger Mark II, or a K22 Masterpiece, but WAY more packable. And you'll never worry about scratching it.
Just a thought.