10 Common kahr cw45 problems

The Kahr CW45, a compact .45 caliber handgun, has earned a reputation for its durability and performance. However, like any firearm, it’s not immune to certain issues. 

These can range from minor hitches to significant problems that may influence the overall functionality and safety of the gun. 

Here, we will delve into the ten most common Kahr CW45 problems, providing insights to help owners and potential buyers make an informed decisions.

Kahr cw45 problems

Kahr cw45 problems

1. Failure to Feed


One common issue with the Kahr CW45 is the “Failure to Feed” phenomenon. This typically occurs when the firearm is unable to properly load a round into the chamber. 

Possible causes include a worn-out magazine spring, a dirty or clogged chamber, or the usage of incorrect ammunition.


The solution to this problem largely depends on identifying the root cause. If the magazine spring is worn out, replacing the magazine should resolve the issue

A dirty chamber can be addressed by thorough cleaning and appropriate lubrication of the firearm. 

If the problem persists even after these steps, it’s advisable to check the ammunition type being used. If the ammo is not recommended by the manufacturer, consider switching to a suitable alternative.

2. Ejection Issues


One common problem with the Kahr CW45 is related to ejection issues, which can typically be traced back to two main causes: a weak extractor spring and an improperly machined extractor. 

The weak extractor spring can fail to provide sufficient tension to hold the casing firmly, while an improperly machined extractor may not grip the casing adequately, causing inconsistent ejection.

Ejection issues often stem from a weak extractor spring or an improperly machined extractor. These issues can interfere with the firearm’s performance and reliability.


The most straightforward solution to ejection issues with the Kahr CW45 involves replacing the extractor spring with a stronger one and ensuring the extractor is properly machined and installed. 

Regular maintenance, including cleaning and lubricating the extractor and its channel, can also play a vital role in preventing these issues.

To address ejection problems, consider replacing the extractor spring, checking the extractor’s machining, and implementing regular maintenance procedures. 

These steps can significantly enhance the firearm’s functionality.

3. Difficulty in Disassembly


Many owners of the Kahr CW45 have reported that the disassembly process can be quite challenging. 

The design of the CW45 requires a higher level of manual dexterity and firm grip to successfully disassemble the firearm for routine maintenance and cleaning. 

This complexity can prove to be a hindrance, particularly for those with limited physical strength or those unfamiliar with the intricate details of firearm maintenance.

The Kahr CW45 assembly design calls for a higher level of manual dexterity. 

This complexity is particularly challenging for those with limited physical strength or unfamiliar with firearm maintenance.


While the disassembly process may initially seem daunting, practice and familiarity can dramatically improve the experience. 

It’s recommended to refer to the user manual or seek professional guidance to understand the exact steps involved in disassembly. 

Furthermore, there are numerous online resources and video tutorials that provide step-by-step instructions, helping owners overcome the initial steep learning curve.

Refer to the user manual or seek professional guidance for disassembly steps. 

Online resources and video tutorials can provide valuable assistance, helping to overcome the initial steep learning curve.

4. Recoil Spring Breakage


One common issue with the Kahr CW45 is recoil spring breakage. 

This problem usually arises due to the high-pressure rounds used in this firearm that exert tremendous stress on the recoil spring. 

Prolonged use of high-pressure rounds can weaken the spring, leading to its breakage. This can compromise the firearm’s reliability, causing it to fail when needed most.


A straightforward solution to this issue is to replace the recoil spring regularly, particularly if you often use high-pressure rounds. 

Manufacturers recommend changing the recoil spring after a certain number of rounds are fired. 

Adherence to this guideline ensures that the spring maintains its tension and prevents unintentional breakage

Another solution is to opt for standard pressure rounds to reduce the load on the recoil spring.

5. Magazine Release Complications


The Kahr CW45 sometimes experiences issues with the magazine release due to wear and tear or incompatible magazines. 

The problem often manifests as the magazine failing to lock into place or dropping out unexpectedly during operation. 

This can be particularly troublesome and potentially dangerous when the firearm is needed for defensive situations.


To rectify this issue, it is recommended to first ensure that the magazine used is compatible and specifically designed for the Kahr CW45. 

If the problem persists, it may be due to a worn or defective magazine release spring or button. 

In such a case, replacing these parts with new, factory-made components is advised. Always remember, it is crucial to prioritize safety when dealing with any firearm issues.

6. Slide Lock Lever Problems


One common issue faced by Kahr CW45 users pertains to the slide lock lever. 

The problem often manifests as the slide lock lever failing to keep the slide open after the last round is fired. 

This typically arises due to a weakened or damaged slide spring, excessive carbon build-up, or a worn-out slide lock lever.

A weakened or damaged slide spring, excessive carbon build-up, and a worn-out slide lock lever are the typical causes of this issue.


The solution to the slide lock lever problem involves a few steps. 

First, ensure regular maintenance and cleaning of the firearm to prevent carbon build-up. Second, consider replacing the slide spring if it appears damaged or weak. 

Finally, if the problem persists, replace the slide lock lever entirely.

Remember, regular maintenance, replacing the damaged slide spring, and replacing the worn-out slide lock lever are critical steps in resolving this issue.

7. Barrel Peening


Barrel peening in Kahr CW45 handguns is often a result of high-pressure and intense friction between the slide and the barrel during firing. 

Over time, this constant pressure and friction can cause the barrel’s surface to deform and create raised, hardened areas known as peens.

This is a common issue in high-impact firearms and is typically an indication of prolonged use or occasionally, a manufacturing defect.


The most effective solution for barrel peening is professional gunsmithing. Skilled gunsmiths can carefully smooth out the peened areas without compromising the barrel’s structural integrity.

For minor peening, regular cleaning and proper lubrication can slow the progression. However, neglecting significant peening may lead to serious functional issues over time.

Remember, safety should always be your first consideration, so do not hesitate to seek professional help when faced with this problem.

8. Grip Comfort Concerns


The Kahr CW45 often draws criticism for its uncomfortable grip, which can be attributed to its compact size and the power inherent to its .45 ACP caliber. 

The steeper recoil of this caliber combined with the smaller grip can often make extended shooting sessions a tough task, leading to discomfort and potentially decreased accuracy.

The discomfort arises primarily due to the compact size and steep recoil. The grip isn’t ergonomically designed to mitigate these issues, which tends to exacerbate the problem. 

The insufficient palm swell and short grip tang can make the pistol harder to control, particularly for those with larger hands.


In order to counter this problem, users have found a few effective solutions. One common and inexpensive fix is the addition of grip sleeves or wraps. 

These can provide additional cushioning and also increase the size of the grip, making it more comfortable for those with larger hands.

Aftermarket grips are another viable option. There are several manufacturers that make custom grips specifically for the Kahr CW45, with designs that can substantially improve the ergonomics and comfort. 

Regardless of the solution you choose, it’s recommended to experiment with different options to find what works best for your particular hand size and shooting style.

9. Inadequate Factory Lubrication


The Kahr CW45, like many other firearms, relies heavily on adequate lubrication to function efficiently. 

In some instances, the factory lubrication may be inadequate, leading to common problems such as hard recoil, stovepiping, and failure to fire. 

This is particularly prevalent when the firearm is new and has not yet been ‘broken in’.

An insufficiently lubricated firearm can lead to premature wear and tear, rendering your weapon unreliable when you need it most.


To overcome this issue, it is advisable to properly lubricate your firearm before your first usage. This not only enhances the efficiency of the firearm but also extends its longevity. 

Use high-quality gun oil or grease on areas of direct metal-to-metal contact, such as the rails and barrel hood.

Maintaining adequate lubrication is crucial to ensure optimal performance and longevity of your firearm. Remember, a well-lubricated firearm is a reliable firearm.


While the Kahr CW45 is generally lauded for its compact size and high caliber, it has its share of commonly reported issues. 

These can range from difficulties with the slide not locking back after the last round, to instances of unreliable ejection causing stovepipes and double feeds. 

Some users also report a stiff and long trigger pull which may affect shooting accuracy. However, it’s important to note that these problems are not universal and many users find the gun reliable and easy to handle. 

Regular maintenance and the use of high-quality ammunition can also mitigate many of these issues. 

Therefore, potential buyers should weigh these considerations against their personal requirements and expectations.


Does the Kahr cw45 have a safety?

No, the Kahr CW45 does not incorporate manual safety. Instead, it utilizes a passive safety system, which only allows the pistol to fire when the trigger is intentionally pulled.

Does Kahr make a 45?

Yes, Kahr does manufacture a .45 caliber firearm. The Kahr CW45 is one of their popular models that fires .45 ACP rounds, known for its compact size and high power.

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