6 Common Beretta CX4 Storm Problems You Must Be Aware of

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I spent time testing the Beretta CX4 Storm in various conditions. Through my rigorous field trials, I faced several issues with this firearm. These experiences also provided insights into what might be common for other users.

Our hands-on practice with the Beretta CX4 Storm allowed me to uncover six main problems: slide racking issues, feeding issues, problems with the bolt, jamming problems, magazine problems, and failure to eject. 

Fortunately, I also spent time analyzing and solving these Beretta CX4 Storm Problems, and in this article, I am prepared to share my discoveries with you.

Let’s dive in!

Overview of the Problems & Their Solutions

Slide Racking IssuesCycle a few hundred rounds through to loosen up the slide, improving manageability.
Feeding IssuesStick to factory Beretta 20-round magazines; avoid aftermarket magazines for better reliability.
Problems with the BoltCheck the magazine follower; replace if damaged or use a new magazine for better performance.
Jamming ProblemsRegular cleaning and lubrication, inspection of the extractor claw, and using factory magazines.
Magazine ProblemsBend the magazine catch spring to align it with the angle; ensure a strong and smooth button.
Failure to EjectReplace the extractor entirely; available on the official Beretta website or seek qualified gunsmith help.

Top 6 Beretta CX4 Storm Problems & Solutions

1. Slide Racking Issues

While testing the Beretta CX4 Storm, one problem I consistently ran into was the slide racking issue. The charging handle on this firearm is very short, almost like a tiny “nub.” 

This design made it extremely hard to “rack” it properly. In fact, during my trials, I found that my knuckles would often get raked on the Pic rail, causing discomfort and affecting my ability to operate the gun efficiently. 


I wondered if the racking might get easier over time with repeated cycling. So, I decided to put a few hundred rounds through it to see if things would loosen up. 

Guess what? It did help a bit! The slide did become more manageable, although not entirely perfect. So if you’re facing the same issue, don’t give up on it too quickly; give it some time and a few hundred rounds. It just might improve for you, too!

2. Feeding Issues

During my time in the field, I experienced a recurrent and troublesome issue with the Beretta CX4 Storm: failure to feed. This problem seemed to come up consistently, and I soon realized it was connected to the type of magazine I was using. 

Specifically, I found that when using aftermarket magazines like the 15-round Mec-Gar magazines, the failure to feed problems were more frequent. 

I noticed that this magazine had a slightly different form factor than the factory ones, which seemed to cause this issue.


To tackle this problem, I decided to test different solutions. First, I stuck to the factory Beretta magazines and observed a significant decrease in the failure to feed issues. 

Additionally, I tried filing down the magazine lips little by little and test firing to find the right balance. However, I concluded that simply sticking to the factory magazines was the most reliable and effective solution. 

I recommend avoiding aftermarket magazines if you want to steer clear of these feeding issues. My trials have shown that staying with the factory option is the surefire way to a better experience with the CX4 Storm.

3. Problems with the Bolt

The bolt of the Beretta CX4 Storm proved to be a rather tricky aspect during my time testing it in the field. I encountered several issues with it. 

Sometimes the bolt would lock back with one round still in the magazine, and other times it wouldn’t lock back after the last round had been shot. 

These problems were quite frustrating and clearly affected the overall performance of the firearm. 

After investigating, I traced these issues back to the magazine, whether it be a damaged follower, a worn-out mag spring, or an incompatible magazine.


In my pursuit of solutions, I examined the magazine follower to see if it was damaged or worn. Indeed, in some cases, it was, and acquiring a replacement magazine follower kit online became necessary. 

But what if that doesn’t work? I also discovered that replacing the magazine entirely could rectify the problem. 

If you are dealing with these bolt issues, it’s worth checking your magazine follower, replacing it if necessary, or opting for a new magazine. 

Trust us, spending time on these solutions will make a world of difference in your experience with the CX4 Storm.

4. Jamming Problems

The jamming issues with the Beretta CX4 Storm were a constant concern during my field testing. 

Several factors seemed to contribute to these problems. I identified two main culprits: a potentially broken extractor claw, leading to ammo jams and failure to extract, and a dirty breech face and chamber. 

This wasn’t just a one-off problem; these issues persisted, causing delays and frustration as I spent more time clearing jams than I would have liked.


To handle the jamming issues, I first checked whether the extractor claw was broken or not. Then, I realized the importance of regular and thorough cleaning. 

Cleaning the Beretta CX4 Storm frequently, focusing on the breech face and entire chamber, became a must. Lubricating the necessary parts also made a noticeable difference. 

For those facing similar issues, my tested recommendation is to keep a close eye on the extractor claw, follow the “Ejecting Issue” guidance if needed, and prioritize cleaning and maintenance. 

Sticking to factory Beretta 20-round magazines also alleviated some jamming issues related to feeding. By addressing these aspects, I significantly reduced the jamming problems and enhanced the firearm’s performance.

5. Magazine Problems

While testing the Beretta CX4 Storm, one frustrating issue that kept cropping up was the magazine not locking into the gun. 

Imagine the inconvenience: you’re going through a shooting drill, and suddenly, the magazine falls out, leaving you with a loose and ineffective piece of equipment. 

It happened more often than I’d like to admit, mainly with the older models of the CX4 Storm. I eventually traced the problem to what appeared to be a small oversight in the design – a bend in the magazine catch spring that seemed to be missing.


Figuring out the solution required a close examination. After disassembling the gun, I found the hole where the short end of the spring goes in and noticed that it was molded at an angle. 

The solution? A simple adjustment bends to the spring, aligning it with the angle. 

This quick fix corrected the seating issue and gave the gun a strong and smooth button. 

The magazine held properly after that, and the annoying problem of it falling out was resolved. It’s an easy fix but one that makes all the difference in the overall experience with the CX4 Storm.

6. Failure To Eject

During my extensive field testing of the Beretta CX4 Storm, I encountered a recurrent and worrying issue: failure to eject. It’s exactly as bothersome as it sounds. 

With time and extensive use, the extractor claw, which is key to the ejection process, seemed to become brittle and break off. Now, when you’re aiming at a target, the last thing you need is your gun failing to eject a round. 

The problem grew to be a significant hindrance, and it became apparent that I had to delve into the matter to find a solution.


After some investigation, I found that the only viable solution was to replace the extractor entirely. 

Luckily, a replacement extractor for the Beretta CX4 Storm was readily available on the official Beretta website. I opted to handle the replacement ourselves, but for those uncomfortable with doing it themselves, seeking the help of a qualified gunsmith is an excellent option. 

Post-replacement, the gun functioned flawlessly, and the ejection issue was resolved. It’s a reminder that even with quality firearms, maintaining and sometimes replacing parts is key to optimal performance.


The Beretta CX4 Storm, with its distinct appearance and solid build, certainly has a lot to offer. 

However, no firearm is without its shortcomings, and the CX4 Storm is no exception. I faced real concerns with slide racking, feeding issues, problems with the bolt, jamming, magazine problems, and failure to eject. 

Fortunately, the solutions to these problems were within reach, and most could be overcome with time, patience, and a little know-how. The key was to recognize the signs and act quickly to remedy them. 

The firearm has its weaknesses, but they are far outweighed by its many strengths, especially when the potential solutions are taken into account. 


Is the Cx4 Storm a good gun?

Yes, the Cx4 Storm is a good gun; it’s solid, pleasant to shoot, has a distinct look, service history, and its few negatives are fairly easy to overlook.

What is the effective range of a Beretta Cx4?

The effective firing range of a Beretta Cx4 is approximately 200 meters.

Where is the Cx4 Storm made?

The Cx4 Storm is made by Beretta in Italy.

Is the Beretta Cx4 Storm considered an assault rifle?

The Beretta CX4 Storm is not considered an assault rifle; it’s actually a pistol-caliber carbine, though it has been portrayed differently in certain contexts.

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I'm Micheal, an avid shooter and hunting enthusiast from Texas. I'm a recreational shooter who loves to spend time at the range and enjoy learning about new firearms and gears. I love to write about guns and share my passion for shooting with others.

2 thoughts on “6 Common Beretta CX4 Storm Problems You Must Be Aware of”

  1. Michael
    Thanks for the excellent article about the CX4 Storm. I bought a used one recently and am having issues with feeding . I know you covered this but my question is how do I know if the mags are Beretta and not aftermarket ?
    I have three 15 round and one 30. They all say made in Italy .
    Thanks again

    • Thanks for reaching out and I’m glad you found the article helpful! Dealing with feeding issues can definitely be a bit of a headache, but we’ll get you sorted out.

      Regarding your magazines, if they’re marked as “Made in Italy,” that’s a good start, as Beretta does manufacture their magazines there. However, some aftermarket brands also produce their mags in Italy, which can make things a tad confusing. To double-check if your magazines are indeed from Beretta, you can look for the Beretta logo or specific part numbers that are usually stamped on the magazine body. These often include the Beretta name or the iconic Beretta logo.

      If you don’t see these markings, there’s a chance they might be aftermarket. If you’re still unsure, you could also compare them with images of genuine Beretta magazines online or visit a local gun shop where they can help verify them.


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