The Beretta MX4 Storm submachine gun is a defense and law enforcement firearm developed for professional use. The use of polymer in the frame reduces the weight of the SMG while increasing its ergonomics features. The extractor, the ejector, the coking handle, the ejection port cover, the magazine release button, and the manual safety/fire selector button are all reversible for right- and left-hand use.
Caliber 9x19mm
Magazine Capacity 30 rounds
Stock Fixed Weight Unloaded Empty Magazine approx. 2,5kg / 88.18oz
Rifling Pitch 250mm / 10in
Operating Principle Blowback
Number of Grooves R.H. – 6 grooves
Sights System Fixed sight
Lower Receiver Material Fiberglass reinforced technopolymer
Upper Receiver Material Fiberglass reinforced technopolymer
Accessory Rail MIL-STD-1913
Safeties Manual and automatic firing pin block and safety on the hammer
Fire Selector Positions Three position S-1-F
Reciprocating System Yes
Ejection Side Right
Height approx. 189mm / 7.44in
Width approx. 63mm / 2.48in
Length approx. 647mm / 25.47in
Barrel Length approx. 312mm / 12.28in
Sight Radius 327mm / 12.87in
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