5 Beretta PX4 Storm Subcompact Problems You Should Know

The Beretta PX4 Storm Subcompact is a concealable version of the Beretta PX4 Storm. It is a double/single-action pistol used among military and police organizations worldwide.

Despite its worldwide fame, there are quite a few Beretta PX4 Storm Subcompact problems to deal with.

These problems include issues with the accuracy, slide, and magazines. Along with other feeding and jamming problems. However, there are certain steps available for Beretta PX4 Storm Subcompact troubleshooting.

Here are some of the features and specifications of the Beretta PX4 Storm Subcompact.

Features & Specifications of the Beretta PX4 Storm Subcompact:

Beretta PX4 Storm Subcompact Specs
Cartridge9×19 (Para)/9×21 IMI/.40 S&W
Capacity13/10 Rounds
Barrel Length3 Inches
Weight26.1 Ounces (Unloaded)
Length6.22 Inches
Width1.42 Inches
Height4.8 Inches
SafetyAmbidextrous Safety, Decocker
Sights3-dot Iron Sights
Common Beretta PX4 Storm Subcompact Problems
Beretta PX4 Storm Subcompact

Common Beretta PX4 Storm Subcompact Problems and Solutions

Below are a few problems that the PX4 Subcompact might face in its lifetime. The detailed solutions to get your Beretta PX4 Storm Subcompact problems fixed are also provided under the table.

Quick Overview of the Problems and Solutions

Beretta PX4 Storm Subcompact ProblemsSolutions
Slide Coming Off While ShootingRefitting the takedown pin
Locked MagazinesReplacing the magazine/polishing it
Accuracy IssuesEquipping aftermarket sights
JammingCleaning, replacing the mag, changing ammo
Failure to FeedEliminating limp wrists, breaking in the gun

1. Slide Coming Off While Shooting:

The takedown pin of the Beretta PX4 Storm Subcompact is often said to be loose by many users. This issue can be extremely dangerous if the slide entirely comes off during shooting.

This happens when after shooting a round, the slide comes back to load the next bullet into the frame. But instead, the slide can entirely come off.


 Beretta PX4 Storm Subcompact Takedown Pin
Beretta PX4 Storm Subcompact Takedown Pin

The issue here is with the takedown pin (Fig 1). The impact while shooting slowly makes the pin walk away from its position.

The solution here seems to be refitting the takedown pin on the gun. As there could be signs of wear. In such a case, you may opt for a replacement takedown pin.

2. Locked Magazines:

The issue, in this case, tends to be that the magazine frequently gets stuck after the last round is fired. The slide catch lever does not work when the mag gets stuck.


To eject the magazines, you need to manually move the slide back just a bit, hold it, slap the mag in, and push the eject button.

You should take a closer look at the magazine. There should be a bit of wear on the part that is catching. You should polish that part with fine sandpaper. Preferably 500-1000 grit.

Beretta Px4 Storm Subcompact Magazine 9mm (13 Rounds)
Beretta Px4 Storm Subcompact Magazine 9mm (13 Rounds)

However, if the issue still persists, you should opt for a replacement magazine (Fig 2) from Beretta.

3. Accuracy Issues:

The Beretta PX4 Storm Subcompact is known to have accuracy issues often. Especially if the gun is brand-new out-of-the-box. It either shoots quite low or to the left. Or sometimes both.


You may opt to get an aftermarket adjustable sight for your Beretta Px4 Storm Subcompact. As that would give your sights the capability to be adjusted by a qualified gunsmith.

4. Jamming:

The Beretta PX4 Storm Subcompact may jam due to several reasons. Such as a dirty or dry gun, an issue with the magazine, or the type and brand of ammo.


To remedy the issue, you need to clean the gun properly. Alongside cleaning the gun, you should also need to keep it properly lubricated and oiled.

The issue can also be due to defective, worn-out, or low-quality magazines. Hence you could try to replace the magazine and see if the issue persists or not.

And finally, as a last resort, you could try to replace your ammo. Based on which caliber of gun you have, try to invest in good quality ammo to resolve the issue. As often times cheap ammo can cause several issues.

5. Failure to Feed:

Failure to feed issues may also be persistent with other types of jamming as discussed above. The solutions for jamming also apply to the “failure to feed” issue.

However, if the issue persists, there are a few other solutions provided below.


The shooter must eliminate limp wrists altogether. As concealable weapons need every bit of force from the recoil to make the gun function properly. If the recoil is absorbed by the shooter, the gun may fail to feed properly.

And finally, if the gun is still brand new, breaking in the gun might eliminate the issue. As the springs are quite stiff on the PX4 Storm Subcompact. You could keep the slide open for a prolonged period of time to break in the spring as well.

User Feedback on Beretta PX4 Storm Subcompact

The Beretta PX4 Storm Subcompact has a decent reputation from the users. While some have stated on being content with the reliability that it provides, others have raised their voice against some of its flaws.

Several users have mentioned that the Beretta PX4 Storm Subcompact is prone to shooting low/left. Such as this user on the Defensive Carry forum.

One user has written on the product page of the Beretta PX4 Storm Subcompact that this gun combines the best of both worlds. As it has quite a decent capacity and a small form factor.

However, another serious issue with the PX4 Storm Subcompact is the takedown pin walking off from the gun. One such case has been brought up on the Defensive Carry forum.

Another user on the Handgun Forum stated how the gun is quite expensive but still very decent.

Frequently Asked Questions (FAQs)

What is the action type of the Beretta PX4 Storm Subcompact?


Are the Beretta PX4 Storm Subcompact backstraps interchangeable?


What is the effective firing range of the Beretta PX4 Strom Subcompact?

50m for 9mm and 25m for .40 S&W.

Can the Beretta PX4 Strom Subcompact mag release be reversed?

Yes, it can be changed or reversed.

What is the barrel material on the Beretta PX4 Strom Subcompact?

Stainless steel.


If you had to encounter any of the Beretta PX4 Storm Subcompact problems, this article should help solve the issue. If you face any issue apart from this, do not hesitate to contact Beretta.

In case the Beretta service does not suffice to fix your issue, any professional gunsmith should be able to help you with your issue.

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1 comment
  1. You might want to contact Beretta if your having these problems. I’ve never had o e problem with this gun.

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