Beretta's Px4 Storm features an exclusive Beretta-designed locked breech with a rotating barrel system which reduces felt recoil and muzzle rise. The chrome-lined barrel provides extreme corrosion resistance and also features a deeply-recessed combat muzzle crown to protect the rifling. The light durable frame employs modern thermoplastic technology through the use of technopolymer-reinforced fiberglass and features an integral Picatinny MIL-STD rail. The Px4 Storm has an ambidextrous safety/decocking lever and a reversible magazine release and it may be configured with backstraps. Includes magazine and backstraps.
| Caliber | 40 S&W |
| Action | DA/SA |
| FireArm | yes |
| Frame Finish | Black |
| Type | Pistol |
| Frame Material | Polymer |
| Slide Description | Serrated |
| Sight Style | Contrast |
| Capacity | 14+1 |
| Safety | Ambidextrous/Firing Pin |
| Grips | Black Interchangeable Backstrap |
| Sight Configuration | 3-Dot White |
| Weight | 27.7 oz |
| Barrel Type | Chrome-Lined |
| Case Type | Hard |
| Barrel Length | 4" |
| Barrel Length Range | 4.00" to 4.99" |
| Weight Range | 16.00 oz to 31.99 oz |