>>546766
Open your eyes, bucko.
>What's a good, semi auto .22 kit that I could build around?
Define ".22 kit." The 10/22 has an extensive enough aftermarket that you can put it together part by part if you like–you can buy a receiver, a bolt, a barrel, and a trigger from four different companies and put it together. I'm not sure if that's what you want or if you want to go even smaller, but it's probably your best bet.