I have been looking at a 22 uzi online, its the walther with the 16 inch barrel. i mainly want it for a collector item since they don't make them anymore, but i think it would make a good trunk gun or defense gun. I got to thinking about the actual name of the round--22 LONG RIFLE. Perhaps to be good for defense, it actually needs to be shot from a LONG RIFLE gun to get speed and penetration, not fired from a 2 inch handgun. I would think a 16+ inch barrel, paired with hyper velocity round nose ammo would give it enough penetration. I saw some statistics that showed where i could get 1300+ fps and 14 inches in gel with a set up like that. I think what makes a 22 dangerous is that regular people can actually hit with it also, and 22 rifles offer 10-20 rounds that can be fired fast. As a bonus, you may not go deaf if you actually had to use it like you would a 223. so,, i think using an actual rifle makes it a game changer. I havent posted in a while,, good to see ya'll again.