GVB,
It is chambered in.40 SW, only complaint is that one of the magazines was not updated with the locking base plate spring retainer and the base would move forward during recoil. BUSA and several other outlets would not sell me a new locking retainer! The only fix was to buy the Beretta extended base +1 it locks the base and ads one more round. The gun shoot well it feels great and the night sights are a nice bonus.