Kel-Tec Sub 2000 Gen 2 Problems And Their Solutions

The Kel-Tec Sub 2000 Gen 2 is a compact and lightweight rifle that gained immense popularity after its release in 2015.

Despite its initial success, many users have reported facing various problems with this firearm. But trust me, these issues can be easily tackled with the right solutions.

In this article, we will discuss some of the common problems encountered by shooters of the Kel-Tec Sub 2000 gen 2 and give you some solutions that will help you optimize your shooting experience with this versatile rifle.

Some of the most common problems with Sub 2000 Gen are firing issues, trigger problems, heavy recoil spring, ergonomics, sight, and barrel problems.

Quick Overview of Kel-Tec Sub 2000 Gen 2 Problems And Solutions

Problem Solution
Firing Issue Check the ammo and clean the gun frequently
Trigger Problem clean and lubricate the trigger components
Heavy Recoil Spring cycling through a few ammo magazines.
Ergonomics charging handles with aftermarket parts or used an extended charging handle
Barrel Issue replace the barrel
Sights Issue use LocTite on the screws of the sights to prevent them from becoming loose.

Common Kel-Tec Sub 2000 Gen 2 Problems And Their Solutions

1. Firing Issues

One of the most notable problems reported with the Kel Tec Sub-2000 gen 2 is its firing issues. It’s known to experience frequent misfires, light strikes, and failure to fire altogether.

So, you need to know how to troubleshoot these firing issues and find solutions. It would help if you always started by checking the ammunition you’re using, as this could be the source of the problem.

Make sure to use good quality, factory-made ammunition that is within the recommended specifications for your firearm. Using cheap or hand-loaded ammo can often result in firing issues.

Next, check the condition and cleanliness of your firing pin and chamber. If either one is dirty or damaged, it can cause misfires and light strikes. Cleaning your firearm regularly can prevent these issues.

Another solution to firing issues is ensuring the bolt assembly is adequately lubricated. Lack of lubrication can cause friction, resulting in misfires and failure to fire.

Using high-quality gun oil or grease made explicitly for firearms is recommended.

If none of these solutions work, you should have a gunsmith inspect your Kel Tec Sub 2000 gen 2. There could be underlying issues with the firing mechanism that must be addressed.

2. Trigger Problem

While the Kel-Tec Sub 2000 gen 2 is generally known to be a reliable and accurate weapon, some users have reported problems with its trigger mechanism.

This issue can occur in both the 9mm and .40 S&W versions of the rifle.

The most common problem reported is a gritty or heavy trigger pull. Some users have also experienced inconsistent or unpredictable trigger breaks, making achieving a consistent and precise shot difficult.

One potential solution for a gritty or heavy trigger pull is to clean and lubricate the trigger components.

Over time, dirt and debris can build up in the trigger mechanism and cause friction, leading to a less smooth pull. Regular maintenance and cleaning can help prevent this issue.

Another potential solution is to upgrade the trigger components with aftermarket options. Various companies offer replacement triggers for the Kel-Tec Sub 2000 gen 2, which may provide a smoother and more consistent pull.

In some cases, the trigger problem may be caused by an improperly installed trigger bar. This can be fixed by properly aligning and securing the trigger bar in its designated position.

If none of these solutions fix the issue, contacting Kel-Tec’s customer service is recommended for further assistance.

3. Heavy Recoil Spring

Kel-Tec Sub 2000 Gen 2 owners commonly complain about its heavy recoil spring. This issue has been linked to a number of problems and can be quite frustrating for users who are trying to get the most out of their firearms.

First, let’s take a look at why this problem occurs. The reason for the heavy recoil spring is that it is designed to handle the weapon’s recoil.

However, some owners have reported that the spring can feel stiff or even locked up sometimes, making it difficult to operate the gun smoothly.

But don’t worry, there are solutions to this problem!

One minor solution is to break in the heavy recoil spring by cycling through a few ammo magazines. This can help loosen up the spring and make it easier to handle.

Another solution is to replace the heavy recoil spring with a lighter one. This may impact how the gun handles certain types of ammo, so be sure to do your research before making this change.

If you’re rather handy, you can modify the existing spring by trimming a few coils. However, this should only be attempted by those who are comfortable with tinkering with their firearm and understand its mechanics well.

4. Ergonomics

One of the most commonly reported problems is the stiff charging handle. This can make operating difficult for users, especially if they have smaller hands or lack upper body strength.

To address this issue, some gun owners have modified their charging handles with aftermarket parts or used an extended charging handle for more straightforward operation.

Another potential issue with the ergonomics of the Sub 2000 Gen 2 is its weight distribution.

While it is designed to be lightweight, some users have found that the weight is not evenly distributed, leading to discomfort during extended use.

This can be remedied by adding accessories such as a vertical grip or using a sling to help distribute the weight more evenly.

Additionally, some users have reported problems with the grip angle and size of the Sub 2000 Gen 2. This can make it uncomfortable to hold for extended periods, especially for those with larger hands.

To address this issue, aftermarket grips offer a different angle or size to better suit the user’s needs.

5. Barrel Problem

The Kel-Tec Sub 2000 gen 2, released in 2017, has been known to face barrel problems. This issue mainly revolves around the barrel rupturing and causing serious safety hazards for the user.

One of the main reasons for this problem is weak barrels used during production. These barrels cannot withstand the pressure generated by firing rounds, leading to malfunctions and failures.

As a result, the company has issued a recall for all Sub 2000 gen 2 models affected by this issue.

To ensure safety and prevent any potential accidents, paying attention to your weapon’s serial number and checking if it falls under the recalled batch is crucial. If so, make sure to contact Kel-Tec immediately for a replacement barrel.

6. Sights Issue

One of the common problems encountered with the sights of the Gen 2 model is that they can become loose over time. This can happen due to frequent use or even rough handling of the rifle.

When the sights are not secure, it can greatly impact their accuracy and performance.

To improve this issue, a few solutions have been tested and proven effective by many Kel-Tec Sub 2000 owners. One solution is to use LocTite on the screws of the sights to prevent them from becoming loose.

 Loctite is a thread locker that can be applied to screws and bolts to keep them in place. Using Loctite, you can ensure that your sights stay secure even after repeated use.

Another solution is to upgrade the factory sights with aftermarket ones. There are many options available in the market that offer improved accuracy and durability.

Some popular choices among Kel-Tec Sub 2000 owners include red dot sights and fiber optic sights. These types of sights are highly recommended for their ability to improve accuracy, especially at longer distances.

It is important to note that proper installation of the new sights is crucial for optimal performance. If you are unfamiliar with installing rifle sights, it is best to seek the help of a professional gunsmith.

This will ensure the sights are properly aligned and secured, providing you with the best shooting experience.

3 Best Alternatives To Kel-Tec Sub 2000 Gen 2

1. Ruger PC Carbine

The Ruger PC Carbine is a highly versatile and reliable option, making it one of the top alternatives to the Kel-Tec Sub 2000 Gen 2. It offers a similar folding feature, allowing for easy storage and transportation.

 Additionally, it can accommodate both Glock and SR-series magazines, giving you more options when it comes to ammunition.

The Ruger PC Carbine also has a longer barrel and higher magazine capacity compared to the Kel-Tec Sub 2000 Gen 2, making it ideal for longer range shooting.

2. CZ Scorpion EVO 3 S1

If you’re looking for something with a sleek and modern design, the CZ Scorpion EVO 3 S1 is a great option.

It offers similar features to the Kel-Tec Sub 2000 Gen 2, including a folding capability and compatibility with Glock magazines.

However, it also has a longer barrel and higher magazine capacity, making it more suitable for outdoor shooting.

Additionally, the CZ Scorpion EVO 3 S1 has an adjustable stock and multiple accessory options, allowing you to customize it to your liking.

3. Beretta CX4 Storm

The Beretta CX4 Storm is another reliable and versatile alternative to the Kel-Tec Sub 2000 Gen 2. It has a similar folding mechanism and accepts both Glock and PX4 magazines.

However, what sets it apart is its unique blowback system that reduces recoil and improves accuracy.

It also has a longer barrel and higher magazine capacity compared to the Kel-Tec Sub 2000 Gen 2, making it a great choice for target shooting or home defense.

Frequently Asked Questions (FAQs)

How can I improve the reliability of my Kel-Tec Sub 2000 gen 2?

You can improve the reliability by ensuring proper cleaning and lubrication of the firearm, using high-quality ammunition, and regularly inspecting and replacing worn or damaged parts.

How can I address extraction issues with my Kel-Tec Sub 2000 gen 2?

Extraction issues can often be resolved by cleaning the chamber and bolt face thoroughly. If the problem persists, consult a qualified gunsmith for further inspection.

Is the Kel-Tec Sub 2000 gen 2 a reliable firearm?

While some users have reported issues, many others have had positive experiences with the firearm. It’s important to consider individual use and maintenance practices when determining reliability.


Now that we’ve gone over some common problems faced with the Kel-Tec Sub 2000 gen 2 and their solutions, it’s important to reiterate that proper maintenance and care can go a long way in preventing these issues. If you want your firearm to function flawlessly, it’s crucial to keep it clean and well-lubricated.

In addition, it’s worth noting that the closer your Sub 2000 is to factory specifications, the more reliable it will be. Any modifications or aftermarket parts should be carefully chosen and installed correctly to avoid potential issues.

Finally, remember that action speaks louder than words regarding firearm ownership. Take the time to care for your Kel-Tec Sub 2000 gen 2 properly and you will be rewarded with a reliable and accurate firearm that will serve you well for years to come.

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