I like the idea of an AR or AK pistol. Since I have neither, I will go with the trusty AK. I am most familiar with it, it is reliable, and it is high capacity. I can field strip it and put it back together blindfolded in less than a minute. I also like that it fires a.30 cal projectile at 2400 fps, the ammo is cheap, and it is fairly light so I can carry quite a bit.