Surprisingly, it's my new Kel-Tec P3AT. I got a chance to shoot it this weekend and all I can say is that if you force me to have to shoot you with this thing, it will piss me off so badly that I will beat you to death with my shoe.
Holy crap on a cracker, Batman. I literally had to put my left thumb in the trigger guard to try to keep it from leaping out of my hands. I'm not sure a follow up shot is going to be feasible unless I aim for your toes first, then maybe, the second shot will part your hair.
Of course, the only ammo I could find was my SD ammo, so each shot cost me $1.12. Hell, it's cheaper to shoot the 6.8SPC! And more comfortable to boot.
Sadly, I realize I shouldn't carry this firearm for self defense until I get a metric boatload more practice time. I don't have the faith that I can control it properly in a situation and ensure my rounds go where I want them. If anything, IPSC has taught me I can at least hit my target (the only misses I had were the targets I failed to engage). I'm not so sure with this thing.