Beretta Cx4 Storm
The Beretta Cx4 Storm is a semi-automatic pistol-calibre carbine aimed at the sporting, personal defense and law enforcement markets. It was designed to accept magazines from different Beretta pistol platforms (92/96, 8000 "Cougar" series, Px4) using adapters. The CX4 is available in 9×19mm Parabellum,.40 S&W,.45 ACP, and 9×21mm models.
Beretta Cx4 Storm

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The Beretta Cx4 Storm is a semi-automatic pistol-calibre carbine aimed at the sporting, personal defense and law enforcement markets. It was designed to accept magazines from different Beretta pistol platforms (92/96, 8000 "Cougar" series, Px4) using adapters. The CX4 is available in 9×19mm Parabellum,.40 S&W,.45 ACP, and 9×21mm models.
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wikidata · Q2661792 · wikipedia · Beretta Cx4 Storm
In this article
Design details
Design details
The.45 ACP model can only use 8000 "Cougar" magazines. The Beretta Mx4 Storm is the submachine gun variant of the Cx4 Storm. It is capable of fully automatic fire, features a 12-inch barrel, and is most commonly seen with a 30-round 9mm magazine that is compatible with Beretta 92 pistols.
Both the Cx4 Storm and Mx4 Storm feature a Picatinny rail on top of the receiver for mounting modern optics, and a tri-rail adapter for mounting flashlights, laser sights, grips and other accessories. The firearm also has some ambidextrous features, such as being able to switch the fire selector, charging handle, ejection port and magazine release to the left side. The Cx4 Storm was developed to be used in conjunction with Beretta semi-automatic pistols so that a person can carry one type of magazine for two types of firearms. For example, the magazines for the Beretta 92FS chambered in 9mm can be used in a Cx4 also chambered in 9mm. Conversion between 92/96, 8000/8040/8045 "Cougar" 9×19mm Parabellum/.40 S&W/.45, and Px4 Storm magazines requires changing two parts, a magwell sleeve and the magazine release button (sold separately). 92/96: C5A511 magwell sleeve, C89109 magazine release button Cougar: C5A670 magwell sleeve, C89110 magazine release button PX4: C5C620 magwell sleeve, C89210 magazine release button
Legal status in Canada
Legal status in Canada
The Cx4 Storm was the primary firearm used in the 2006 Dawson College shooting. The restricted class firearm had been acquired legally, and a coroner's inquest into the shooting recommended that all semi-automatic rifles be banned in Canada. Sales of the CX4 Storm increased in Canada following the shooting, and in 2011, Beretta introduced a non-restricted (19" barrel) variant of the Cx4, making it more accessible. On 1 May 2020 the Canadian government reclassified the Cx4 Storm (in all its variants) to be prohibited firearms.
Users
Users
Italy: In 2013, the Italian Navy (Comforsbarc) ordered 90 Beretta Mx4 Storms (for €58,606) to be delivered in 2014; a second order was placed in 2017. India: procured for use by Paramilitary forces of India. Libya: In 2009 ordered 1,900 carbines, before the civil war. Russia: Russian police received a large order of Cx4 carbines with a lengthened 500mm barrel. United States: Used by Albany County, NY Sheriff's Department (.40 S&W), St. Louis Police Department, and College of William & Mary Campus Police Department. Venezuela: Ordered in 2012 by Comando Nacional de la Guardia del Pueblo (Venezuelan Bolivarian National Guard).
Primary material
Documents and archives
authority record
- Wikidata, structured authority record Q2661792: Beretta Cx4 Storm
Unverified · Wikidata
reference work
- “Beretta Cx4 Storm”, English Wikipedia, consulted as further reading
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Notes from the source article
Cited by Wikipedia
Notes from the source article
These works are cited by the source article, in its own numbering. They are recorded as its citations, not as sources VALÉORINE has verified.
- 1.MP5 Gets Replaced. 2011-03-07.
- 2.Beretta USA Customer Help. Converting magazine type in the CX4 Storm.
- 3.Dawson College killer's gun should be banned: coroner. Maclean's.
- 4.NBC News. Canadian ban on semiauto rifle sought. 5 September 2008.
- 5.Gunman's weapon of choice sees spike in popularity. canada.com.
- 6.Canadian Broadcasting Corporation. 10 years after Dawson shooting, killer's weapon is more accessible than in 2006.
- 7.Regulations Amending the Regulations Prescribing Certain Firearms and Other Weapons, Components and Parts of Weapons, Accessories, Cartridge Magazines, Ammunition and Projectiles as Prohibited, Restricted or Non-Restricted: SOR/2020-96. May 2020.
- 8.Document difesa.it
- 9.Direzione degli Armamenti Terrestri. Italy Ministry of Defence.
- 10.Dud guns: MHA seeks report from BSF on Italian company Beretta. India Today. February 13, 2012.
- 11.Opencontent. L'Italia ha inviato 11mila Beretta semiautomatici al regime di Gheddafi.
- 12.Beretta CX4 Storm Carbine 9mm Semi-Auto, New. www.classicfirearms.com.
- 13.Beretta arms New York agency. Shooting Industry. 52. 3. July 2007.
- 14.O'Connell, Patrick M. St. Louis police want more pistol firepower. St. Louis Post-Dispatch. 2008-05-30.
- 15.Burgess, Laura. The College of William and Mary Police Choose the Beretta Cx4 Storm Carbine/Patrol Rifle. Beretta USA, Corp. July 2008.
- 16.Presidente Chávez juramentó a la Guardia del Pueblo para reforzar la lucha contra el crimen. Noticias24.
- 17.Venezuela National Guard with Cx4 Storm. The Firearm Blog. 2012-05-15.
References
Citations
References
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The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 14 August 2026.
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