Type: Pellet air pistol. Manufacturer: Umarex. Model: PX4 Storm. Materials: Metal slide, composite frame. Weight: 1.6 pounds. Barrel: 4.5 inches, metal-rifled. Propulsion: CO2 x 1. Action: Semi auto, blowback, double and single action. Ammunition Type: .177 cal. Pellets or Steel BBs 4.5mm. Ammunition Capacity: 16 rounds. FPS: 380. The Umarex Beretta PX4 Storm is a very unique pellet blowback air pistol and there are very few airguns that sport all the same features. Not only is it a very close replica of the original Beretta PX4 Storm but it's also a blowback pellet shooter with decent FPS velocity. The Umarex PX4 Storm has decent accuracy and you can expect about 60 good shots out of a CO2 cartridge. At well under $100, this replica airgun is a great value and a nice addition to any airgun enthusiasts collection. Read full article here: https://www.replicaairguns.com/2010/8/30/umarex-px4-storm-pellet-gun-review.html Buy this gun in Canada: https://www.replicaairguns.ca/beretta-px4-storm-blowback-bb-pistol Buy this gun in the US: https://www.replicaairguns.us/beretta-px4-storm-blowback-bb-pistol