What caliber do you carry and why?

[Robo Cop]

Ak rifle/any 45 semi auto pistol

 

[Sabonim]

Sometimes I carry my M&P 9c because it's an M&P, sometimes I carry my G22 because it's a .40 caliber Glock, sometimes I carry my .38 snub because it's easy to carry. I enjoy carrying the Bersa Thunder .380 most of all because of it's small size and the way it fits my hand.