Also compatible with: PX4 Compact 9MM, PX4 Sub-Compact 9MM* (Will extend below the base of the grip on a 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).