Kahr PM40 Problems And Their Solutions

The Kahr PM40 is a popular concealed carry pistol for those needing a reliable, compact handgun. But even with its quality design, the Kahr PM40 can experience some common problems.

In this blog post, we’ll explore some of the most common issues and their solutions, so you can keep your PM40 running smoothly.

Some of the most common problems with Kahr PM40 are Failure to feed, failure to eject, magazine problems, trigger problems, Failure To Go Into the Battery, and jamming issues. You can check the guide below to learn how to fix these issues quickly.

Common Kahr Pm40 Problems And Their Solutions

Following our advice, users should have no problem getting their weapons back up to speed.

1. Failure To Feed

The Kahr PM40 is a semi-automatic pistol that has become increasingly popular with gun enthusiasts. However, many owners experience issues with their weapon’s reliability due to failure to feed.

This occurs when rounds fail to enter the chamber after being ejected from the magazine. There are several causes for such an occurrence, and understanding them can help resolve this common problem.

Ammunition issues are at the heart of many failures to feed on the Kahr PM40.

It is important to regularly inspect ammunition before use as it may be damaged or otherwise unsuitable for firing despite appearing normal upon first inspection.

Checking bullets for bent casings, dented lead tips, corrosion, improper powder loads, and other deformities can prevent jamming due to misfeeds.

Additionally, magazines should be inspected thoroughly and cleaned regularly as dirt build-up and wear over time can cause feeding problems.

Magazine springs tend to weaken over time, preventing cartridges from entering into position properly, resulting in jammed slides or failure to feed entirely.

Replacing old springs increases reliability by ensuring proper loading of each round into the chamber when fired.

Therefore, regular maintenance and examination of both ammunition and magazines will go a long way toward preventing failure to feed on a Kahr PM40.

Kahr Pm40 Problems

3. Failure To Eject

The Kahr PM40 is a semi-automatic handgun that can experience ejection problems, including failure to eject. This malfunction occurs when the cartridges do not fully exit the chamber after being fired.

When this happens, it accumulates brass casings within the gun, known as stovepiping or jamming. Two factors usually cause this issue: either the extractor does not have enough tension, or its spring has weakened over time due to wear and tear.

In order to fix these issues, regular maintenance should be conducted on the firearm, such as cleaning and lubrication. These simple steps will help ensure all parts function properly and reduce their stress from debris buildup.

Additionally, inspecting extractors for any signs of damage or wear may prevent more serious malfunctions like faulty ejections. It’s also recommended to replace springs regularly so they don’t lose their elasticity over time which can lead to erratic performance.

Proper maintenance and monitoring of components are key in mitigating potential failures in firearms like the Kahr PM40.

Regular inspections and timely replacements can extend a gun’s lifespan while keeping it reliable and safe.

Kahr Pm40 Problems

3. Failure To Go Into the Battery

The failure to go into the battery is a common issue experienced by users of the Kahr PM40.

This problem can be caused by several factors, such as an obstruction preventing full contact between the slide and barrel or weak magazine springs that cannot fully seat the round in the chamber.

The solution to this problem requires inspecting the firearm’s internal and external parts.

To begin, inspecting inside the gun for any obstructions or dirt buildup that may prevent proper alignment between the slide and barrel is important.

Checking for cartridge case deformities is also necessary for ensuring sufficient space exists for rounds to enter properly into the battery.

If no issues are found internally, then attention must turn towards examining all external components associated with loading ammunition before each shot.

Inspecting magazines for damage and inspecting magazine catch spring tension will help identify if these components have worn out over time.

Additionally, checking whether cartridges have been loaded consistently and securely within magazines should be done before shooting.

Suppose all mentioned inspections fail to resolve this issue.

In that case, further assistance from a qualified firearms technician might be needed due to possible malfunction within the firing mechanism or other complex mechanical problems beyond the user’s abilities and experience levels.

Regular maintenance and quality practice sessions can help prevent future malfunctions related to failure going into the battery when using a Kahr PM40 handgun.

5. Magazine Issues

The Kahr PM40 is known to have magazine issues. Magazine jams are the most common problem, which causes malfunctions and difficulty loading or ejecting rounds.

Jamming can occur due to too much tension in the spring, dirt buildup, incorrect use of ammunition, or an overfilled magazine.

To resolve this issue, it is important to inspect magazines for any damage and then clean them with a high-quality cleaning solvent. Additionally, lubricating the magazine after cleaning can help ensure smooth operation.

Another common issue is when the slide fails to lock back on an empty magazine.

This could be due to worn parts in the firearm that need replacement or because there may not be enough power from the recoil spring to push up on the slide stop lever.

Replacing old parts with new ones should solve this issue; however, further inspection by a qualified gunsmith may be necessary if replacing does not work.

The third type of magazine issue involves either seating problems, where magazines do not fit properly into place, or dropping problems, where magazines fail to drop out freely upon the release of the button.

The first step towards solving these issues would be inspecting the firearm’s frame and mag catch for wear marks or excessive burrs that could interfere with proper functioning.

If no physical abnormalities are found, one must check their grip technique, as improper gripping can lead to misalignment between frame and receiver, resulting in malfunctioning magazines.

In some cases, however, changing magazines themselves might prove more effective than making adjustments within firearms components.

6. Trigger Problems

As any shooter will testify, an inconsistent or overly heavy pull can easily ruin the best-laid target practice plans.

To ensure that your pistol functions as expected when you need it most, it’s important to understand what causes trigger issues and how to address them.

Trigger reset occurs when the handgun has been fired when a disconnector resets the trigger bar in preparation for the next shot. If this process fails, there may be an insufficient force on the sear, which results in an inability to fire further rounds.

This problem can usually be rectified by simply releasing pressure from the slide stop lever so that it can reset properly.

Additionally, if the trigger guard screws are too tight, they can cause malfunctioning triggers due to increased resistance on certain internal components such as springs and pins. Loosening these screws slightly should correct this issue.

Finally, many shooters experience trigger pull issues related to spring tension or wear and tear on parts like hammers and sears. Replacing old springs with new ones or replacing worn-out parts should restore the normal functioning of the trigger mechanism and make shooting more enjoyable.

With proper maintenance and an understanding of common problems associated with Kahr PM40s, shooters can enjoy their firearms safely for years to come without fear of unexpected stoppages or misfires caused by faulty triggers.

7. Recoil Spring Broken

The Kahr PM40 is a semi-automatic handgun that relies on the recoil spring to cycle correctly. If the recoil spring breaks, it can cause numerous problems with the gun’s operation, including jams and misfires. To fix this problem, the broken recoil spring must be replaced.

First, to replace the recoil spring in a Kahr PM40, ensure all ammunition has been removed. Then disassemble the slide by removing any pins or screws holding it together.

Once separated, carefully remove the old recoil spring and insert a new one. Some springs require additional tools for installation and should only be done by an experienced professional if needed.

Reassembly of the slide requires replacing any parts that were removed during disassembly in their proper order according to manufacturer instructions and ensuring they are secured tightly so as not to disrupt the function of other components within the gun’s mechanism.

After reassembling, test fire several rounds of ammunition through your firearm to ensure the effectiveness of repair before returning it to service.

8. Slide Stuck

Kahr PM40 handguns are known for their reliability, but occasionally the slide can become stuck. This problem is referred to as a jammed or stuck slide.

The cause of this issue is usually either a broken part inside the gun, such as an extractor, recoil spring assembly, or magazine disconnect; improper lubrication on internal parts; damage to the barrel hood; or even dirt and debris trapped in the firearm’s action.

Removing the frame from the slide will be necessary to fix a stuck slide on a Kahr PM40 handgun so that all internal components can be inspected and cleaned.

If any damaged parts are found, they should be replaced with factory-specified replacements.

Once reassembled, proper lubrication must be applied according to manufacturer guidelines before testing again. If after these steps have been taken and the issue persists, then further inspection by a qualified firearms service provider may be required.

9. Accuracy Issues

Accuracy is an important aspect of using the Kahr PM40. Poor accuracy can lead to hit-or-miss results, so it’s important to understand the best methods for improving sights and accuracy with this firearm.

The first step in improving your accuracy with the Kahr PM40 is addressing any issues with alignment between the rear sight and front sight.

If these two elements are not properly aligned, then shots will be inaccurate regardless of how well-aimed they appear. Additionally, if you are having trouble adjusting your aiming technique for greater precision, consider investing in aftermarket adjustable sights explicitly designed with the Kahr PM40 pistol.

These sights allow users to fine-tune their aim according to specific shooting conditions, such as wind speed and distance from the target.

Finally, training drills can also help improve accuracy when firing the PM40.

Consider spending time at a range practising fundamentals like stance and grip before attempting more complex drills involving multiple targets or timed fire exercises.

Practising regularly can help develop muscle memory, allowing users to quickly adjust their aim under pressure without sacrificing accuracy.

With consistent practice and proper gun maintenance, shooters can expect improved performance with every trip downrange using their Kahr PM40 handgun.

What Does The User Think About kahr PM40?

The consensus from users of the Kahr PM40 is a mix of positive and negative reviews. Many owners report that the gun is easily concealable and lightweight, making it an ideal carryable choice. It also has a smooth trigger pull and accuracy, especially for a small weapon.

On the other hand, some users have reported issues with jamming and sluggishness in cycling rounds. The gun’s magazine capacity is limited to 6+1 rounds, which some owners feel is inadequate for self-defence.

There have been complaints about the slide being difficult to rack and needing multiple attempts.

Others have noted that the gun can be hard to aim effectively due to its small size and short barrel length. Most users seem to agree that the Kahr PM40 offers good value for money, but many reliability issues remain a concern.

Kahr PM40 vs Kahr CM40

When it comes to handguns, the Kahr PM40 and CM40 are two popular models. Both are renowned for their accuracy, reliability and ease of use, but what sets them apart?

Let’s look closer at the Kahr PM40 vs Kahr CM40 and see which is better for you.

The Kahr PM40 is a compact polymer-framed pistol chambered in .40 S&W. It’s designed to be an extremely lightweight, concealable, and accurate handgun. It features a 4” barrel and a 3.1” overall length, making it ideal for concealed carry.

The PM40 also boasts an impressive 7+1 round capacity and an adjustable rear sight.

The Kahr CM40 is also a polymer-framed pistol chambered in .40 S&W, but it’s slightly larger than the PM40. It features a 4.1” barrel and a 3.8” overall length. It has a 6+1 round capacity and a fixed rear sight. The CM40 is a bit more comfortable to shoot thanks to its longer barrel and grip.

Both the Kahr PM40 and the CM40 have some distinct advantages that set them apart from one another.

The PM40 is more concealable due to its shorter overall length. It also has a larger capacity, making it better suited for self-defence. On the other hand, the CM40 is a bit more comfortable to shoot due to its longer barrel and grip, and it also has a slightly higher capacity than the PM40.

Ultimately, the decision between the Kahr PM40 and Kahr CM40 comes down to personal preference. Both handguns are reliable, accurate, and easy to use.

If you’re looking for a reliable and concealable handgun for self-defence or target shooting, either option is great.

However, if you’re looking for a slightly bigger handgun with a higher capacity and more comfortable grip, the CM40 might be the better option.

Frequently Asked Questions

Is Kahr PM40 a good gun?

Yes, the Kahr PM40 is a good gun. It is a reliable, lightweight, and accurate handgun for concealed carry.

What is the difference between Kahr PM and CM?

The Kahr PM and CM are two popular models of Kahr pistols. The main difference between the two is size and weight; the PM is a subcompact pistol, while the CM is a compact pistol.

The PM is smaller and lighter, making it easier to conceal and carry. The CM is slightly larger and heavier, making shooting more comfortable.

Both models are available in 9mm, .40 S&W, and .45 ACP calibers.

Does Kahr pm40 have a lifetime warranty?

No, the Kahr PM40 does not have a lifetime warranty.


In summary, the Kahr PM40 is a capable and reliable handgun that provides reliable protection. Yet like any firearm, it can sometimes suffer from mechanical issues.

Thankfully, many of these issues can be prevented through proper maintenance and cleaning or corrected through simple fixes.

Remember to read your manual thoroughly before handling the gun and familiarize yourself with all safety protocols to prevent common malfunctions such as misfires, light strikes, jamming, and poor accuracy.

If you experience any of these problems or any other malfunctions, always follow up with a qualified gunsmith to ensure your PM40 is functioning properly and safely before use.