The new Beretta Px4 Storm pistol is the most advanced expression of technological and aesthetic features in a semiautomatic sidearm. Built around a modular concept that a pistol can be adapted to different needs and modes of operations, without compromising on ergonomics and the renowned Beretta reliability and performance, the Px4 Storm emphasizes power, ease of handling, performance and reliability. The Px4 Storm uses an exclusive Beretta designed innovative locked-breech with a rotating barrel system, the strongest action to date. The light yet durable frame employs modern thermoplastic technology through the use of technopolymer reinforced fiberglass. Modular structure, ergonomics and interchangeability of parts make the Px4 Storm the ideal firearm for law-enforcement use, as well as personal defense.