Beretta Cx4 Storm

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Cx4 Storm
The Cx4 Storm
Type Carbine
Place of origin Italy
Service history
Used by See Users
Production history
Designer Beretta
Manufacturer Beretta
Produced 2003–Present
Weight 2.575 kg (5.68 lb)
Length 755 mm (29.7 in)
Barrel length 422.5 mm (16.6 in)
Width 63 mm (2.5 in)
Height 190 mm (7.5 in)

Cartridge 9×19mm Parabellum
9×21mm IMI
.40 S&W
.45 ACP
Action Blowback
Muzzle velocity 9×19mm NATO 1400 FPS
Feed system 8-, 10-, 11-, 14-, 15-, 17-, 20-, or 30-round box magazine
Sights Rear: 2-position aperture flip sight; front: adjustable post
327 mm (12.9 in) sight radius

The Beretta Cx4 Storm is a pistol-caliber carbine aimed at the sporting, personal defense, and law enforcement markets. It is available in two models: one that accepts 92/96 magazines, and one that accepts Px4 series magazines, each available in 9×19mm Parabellum, .40 S&W, .45 ACP, and 9×21mm.

The Beretta Mx4 Storm is an automatic version of the Cx4 Storm.[1]

Design details[edit]

The Cx4 Storm was developed to be used in conjunction with Beretta semi-automatic pistols. For example, the magazines for the Beretta 92FS chambered in 9mm can be used in the Cx4 (also chambered in 9mm). This aids in a smaller loadout – no longer needing to carry separate magazines for the rifle and handgun – and adds redundancy, allowing a person to carry more ammunition without adding weight.

Conversion between Px4 Storm, 92/96 and 8000/8040 Cougar 9×19mm Parabellum/.40 S&W magazines requires two parts (not included with rifle). For Px4 magazines the C5C620 magazine insert and C89210 magazine release button are required, for 92/96 the C5A511 insert and C89109 release, for Cougar the C5A670 insert and C89110 release.[2] The .45 ACP model only accepts 8-round single-stack 8045 Cougar magazines.

The CX4 Storm includes a Picatinny rail that can be extended under the barrel by pushing in the sling button and pulling the rail out by a thumb tab. Each Storm also includes a side rail with two mounting screws, a second can be purchased along with a bottom rail from the manufacturer. The contoured bottom rail is designed to attach under the two side rails. A top rail can also be purchased and installed with a tool that comes with the carbine. Three screws and nuts attach it to the top of the carbine using a pre-drilled hole, allowing the user to use the rail as a template to tap two other holes hidden under a thin membrane of plastic. The correct size drill bit needed for attaching the top rail is not included with the rifle or the top rail kit and has to be purchased separately. A maximum of five Picatinny rails can be utilized using Beretta accessory kits, or the user can use the two present at purchase to attach a number of optics, grips, lights, lasers, bipods etc. This firearm was designed to be very adaptable to customization.

The Cx4 comes from the factory with adjustable iron sights. The front post sight is adjustable for both windage and elevation using the supplied adjustment tool. The rear flip sight has two apertures for snap shooting and long-range elevation selection. Both sights can be folded down when optics are mounted to the optional top rail.

The stock on the Cx4 has an adjustable length of pull. Adjustment is made by the use of stock spacers. The carbine comes with one spacer installed, which may be removed. With no stock spacers installed the minimum length of pull of the Cx4 is 337 mm (13.3 in). To increase the length of pull, additional stock spacers may be purchased separately. A total of three stock spacers may be installed which bring the length of pull to a maximum of 382 mm (15.0 in).

In addition to being able to customize the Cx4 with accessories, it is also able to switch the safety, cocking handle, ejection port, and magazine release to the left side of the weapon to accommodate left-handed shooters.

Dawson College shooting[edit]

The Cx4 Storm was the primary weapon used in a deadly school shooting that occurred at Dawson College on September 13, 2006. The gun had been acquired legally, and a coroner's inquest into the shooting recommended that the Cx4, along with all semi-automatic rifles, should be banned in Canada.[3][4] Sales of the weapon in Canada increased following the shooting.[5]


See also[edit]


  1. ^ "MP5 Gets Replaced". 2011-03-07. Retrieved 2011-03-07. 
  2. ^ "Converting magazine type in the CX4 Storm". Beretta USA Customer Help. Retrieved 20 January 2011. 
  3. ^ "Dawson College killer's gun should be banned: coroner -". Retrieved 11 November 2014. 
  4. ^ "Canadian ban on semiauto rifle sought - World news - Americas - NBC News". Retrieved 11 November 2014. 
  5. ^ "Archived copy". Archived from the original on 2014-05-12. Retrieved 2012-09-07. 
  6. ^ BSF will replace Sterling Carbines with Beretta MX4 Storm Carbines | Page 2 | Indian Defence Forum
  7. ^ Opencontent. "L’Italia ha inviato 11mila Beretta semiautomatici al regime di Gheddafi". Retrieved 11 November 2014. 
  8. ^ "Beretta arms New York agency". Shooting Industry. July 2007. Retrieved 2008-10-27. 
  9. ^ O'Connell, Patrick M. (2008-05-30). "St. Louis police want more pistol firepower". St. Louis Post-Dispatch. Retrieved 2008-10-27. 
  10. ^ Burgess, Laura (July 2008). "The College of William and Mary Police Choose the Beretta Cx4 Storm Carbine/Patrol Rifle". Beretta USA, Corp. Archived from the original on October 15, 2008. Retrieved 2008-10-27. 
  11. ^ "Presidente Chávez juramentó a la Guardia del Pueblo para reforzar la lucha contra el crimen". Noticias24. Retrieved 11 November 2014. 
  12. ^ Beretta CX4 Storm Carbine 9mm Semi-Auto, New - Manufactured by Beretta in Italy

External links[edit]