MX4

The Beretta MX4 Storm pistol-caliber carbine, chambered in 9x19 mm, with a barrel length of 12 inches. It is select-fire, with an automatic rate of fire of about 800 rpm.

The MX4 can use standard 92FS pistol magazines, or its own 30 round magazine. It has in integrated full-length rail for mounting various attachments.

Battlefield 4
The MX4 is a PDW featured in Battlefield 4. It was first seen via killfeed during Paracel Storm gameplay at Gamescom 2013, and later in various gameplay videos.It has also been seen in the Beta version of Battlefield 4 as the starting weapon for the Engineer class.