The Beretta Px4 Storm is a semi-automatic pistol manufactured by Beretta

Beretta

Fabbrica d'Armi Pietro Beretta is an Italian firearms manufacturer. Their firearms are used worldwide for a variety of civilian, law enforcement, and military purposes. It is also known for manufacturing shooting clothes and accessories. Beretta is the oldest active firearms manufacturer in the...

 of Italy

Italy

Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 and intended for personal defense and law enforcement use. The Px4 uses the same short-recoil, rotating barrel lock as the Beretta 8000 Models and uses the same operating system as the M9/92/96 series

Beretta 92

The Beretta 92 is a series of semi-automatic pistols designed and manufactured by Beretta of Italy. The model 92 was designed in 1972 and production of many variants in different calibers continues today...

, while being completely different in design from either. Light-weight polymer

Polymer

A polymer is a large molecule composed of repeating structural units. These subunits are typically connected by covalent chemical bonds...

 construction with steel inserts, a modular trigger group, fully enclosing slide, Picatinny rail

Picatinny rail

The Picatinny rail or MIL-STD-1913 rail or STANAG 2324 rail or a "Tactical Rail" is a bracket used on some firearms in order to provide a standardized mounting platform. A similar system is the Weaver rail mount.-Description:...

, and changeable backstrap options for the grip are a radical departure from previous Beretta designs.
Unlike the first generation Beretta 92/96/M9 series, the Px4's trigger guard is rounded for better concealed carry

Concealed carry

Concealed carry, or CCW , refers to the practice of carrying a handgun or other weapon in public in a concealed manner, either on one's person or in proximity.-In Canada:...

.