This is my second CZ USA autoloader. This one is the CZ75B in .40 S&W caliber. It's a full sized pistol holding 12+1 rounds, and it's not too good for consealed carry. Although it does have an alloy frame which does make it lighter than it could have been. I have shot every brand of ammo available in 40 caliber and the CZ75B has no trouble digesting any of it. This pistol dis-assembles easily and re-assembles just as easy. If you are looking for the power of a 40 without spending a fortune, this is an excellent choice.