This is a factory 10-round magazine for the Beretta PX4 Storm chambered in 9mm. This 10-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 with PX4 Magazine Well Insert/Magazine Release, PX4 Full Size 9MM, PX4 Compact 9MM, PX4 Sub-Compact 9MM* (Will extend below the base of the grip on a Compact and Sub-Compact)
If you are purchasing this magazine for a CX4 Carbine, please ensure that your pistol has a compatible adapter. If you are unsure, you can check it online by visiting www.berettasupport.com. Choose "Technical Data Search" on the right side of the screen. Enter your serial number. The resulting data will include whether or not your CX4 is fitted with a 92FS or PX4 adapter (ie Product Description: CX4 STORM (PX4) 9MM/17RD).