Technical Specifications

Type	Submachine gun · Pistol-calibre carbine
Country of origin	Italy
Manufacturer	Beretta
Designer	Beretta
Produced	2003–present
Used by	See Users
Variants	Mx4 Storm
Weight	2.48 kg (Mx4 Storm) · 2.575 kg (Cx4 Storm)
Length	647 mm (Mx4 Storm) · 755 mm (Cx4 Storm)
Barrel length	312 mm (Mx4 Storm) · 422.5 mm (Cx4 Storm)
Width	63 mm
Height	190 mm
Cartridge	9×19mm Parabellum · 9×21mm IMI · .40 S&W · .45 ACP
Action	Straight Blowback
Feed	8-, 10-, 11-, 14-, 15-, 17-, 20-, or 30-round box magazine
Muzzle velocity	390 m/s
Rate of fire	~1,000 rounds/min
Range	~200 m