This is a factory 17-round magazine for the Beretta PX4 Storm chambered in 9mm. This 17-round magazine also enables you to have a flush fit to achieve maximum concealment. Its stainless steel body provides the quality and longevity you have come to expect from Beretta.
Also compatible with Cx4 Storm with Px4 Magazine Well, PX4 Compact 9MM, PX4 Sub-Compact 9MM* (Will extend below the base of the grip on a Compact and Sub-Compact) Caliber: 9mm. Finish: Black JM4PX920 is an extended magazine.