The Beretta Px4 Storm comes in a wide variety of sizes, calibers, and actions. Most commonly sold as single-action/doubleaction, the polymer-framed Storm was designed as a successor to the Beretta Cougar. In the September 2008 "Arsenal," reviewer Nick Jacobellis wrote: "The PX4 subcompact is an excellent small pistol. And I really love the variety that it offers … The greatest compliment that I can pay any firearm I test is to use my hard-earned money to purchase it. Once I started field-testing the Beretta PX4 subcompact, I knew I wanted to buy one."