Beretta Px4 Storm Sub-Compact. Comes with a 13 round magazine, chambered in 9mm.

"The Beretta Px4 Storm Sub-Compact pistol is the most advanced sub-compact sidearm of its kind. Built around Beretta’s latest Px4 modular technology, the Px4 Storm Sub-Compact delivers concealed carry handling with large frame firepower. The Px4 Storm Sub-Compact uses a very reliable locked breech and tilt barrel system, providing a more compact and lighter weight system." - Berettadefense.com