4 Kel-Tec Sub 2000 Gen 2 Problems: Fix Them Now!

Owning a Kel-Tec Sub 2000 Gen 2 is a journey filled with excitement and challenges. As someone with hands-on experience with this folding carbine, I can attest to its killer features.

Its compact and lightweight design makes it a perfect companion for various shooting endeavours. However, as with any piece of hardware, it has its problems.

Users may encounter hurdles that disrupt their shooting experience, from barrel issues to firing issues. The trigger mechanism and heavy recoil spring can also pose significant challenges.

This article highlights Kel-Tec Sub 2000 Gen 2 problems, provides solutions, and offers time-saving tips.

4 Problems With Their Practical Solution
Barrel ProblemKel Tec recalls Sub 2000 Gen 2 barrels.
Problem with the Trigger MechanismReplace factory springs with aftermarket for trigger fix.
Firing ProblemCheck ammo quality and firearm maintenance for firing.
Heavy Recoil SpringUse rubber tubing or upgrade to aftermarket recoil spring.
Kel-Tec Sub 2000 Gen 2 Problems
Kel-Tec Sub 2000 Gen 2 Problems

Kel-Tec Sub 2000 Gen 2 Problems With Their Practical Solution:

1. Barrel Problem:

Among the problems encountered, barrel issues stand out as particularly serious.

The barrels of this firearm have been known to rupture and suffer from other failure issues, which can be linked to weak or tempered construction.

When out and about with the Sub 2000 Gen 2, the last thing one wants to encounter is a barrel problem. This issue is not only prone to causing severe malfunctions, but it also poses a risk to the shooter and those nearby.


In response to the barrel problems with the Kel-Tec Sub 2000 Gen 2, Kel Tec has issued a recall to address ruptured barrels. This recall process is designed to be hassle-free and immediate, allowing owners to send in their weapons for a swift resolution.

Kel Tec has pinpointed the specific batches affected and ensured that the replacement process was smooth. By taking decisive action and not beating around the bush, they aim to restore confidence and provide a worry-free shooting experience.

2. Problem with the Trigger Mechanism:

The trigger can be a source of irksome issues. The factory pull is often described as spongy, with breakpoints that can affect accuracy at a distance.

As a user, encountering this heavy and unclear trigger can be frustrating, leaving one scratching their head while trying to hit a certain point.

The trigger problem affects many owners, including me. Expecting a smooth operation, only to be met with a pounds and nope response highlights a significant issue.

As users, we rely on the trigger to deliver consistent performance, and when it falls short, it undermines our confidence in the firearm.


Fixing problems with the trigger mechanism becomes a priority for owners seeking optimal performance.

One solution is to swap out the factory springs for aftermarket springs. This fix can significantly improve the trigger pull, providing relief from the pounds and enhancing accuracy for both close-range and longer shots.

Installing aftermarket springs is readily available and can be a cinch for those willing to undertake the task. The result is a better, lighter trigger pull that makes shooting more enjoyable and precise.

Owners can regain confidence in their Sub 2000 Gen 2 by messing with the factory setup. Trust me, switching out of springs is necessary for any discerning shooter.

3. Firing Problem:

Moving on to the next issue, a misfire or jam not only disrupts the flow of shots but also undermines confidence in the firearm’s reliability.

In the field, where performance must be consistent, and shots should perform smoothly, any problems with firing can induce panic and frustration.

A weapon’s reliability is crucial, and any firing issue can ruin an otherwise enjoyable shooting experience.

Such unreliable firing can lead to a loss of trust in the firearm, which is disheartening for any shooter.


When addressing firing issues, exploring solutions becomes imperative.

  • One key aspect to consider is the quality of ammunition used. Misfires and jams can often be traced back to inferior ammo, so investing in higher-quality rounds can make a significant difference.
  • Another aspect to examine is the maintenance of the firearm. A closer look at the firing pin and chamber, ensuring they are cleaned and lubricated, can lead to improved reliability. Unsurprisingly, a well-maintained gun is less likely to experience issues.

Doing so makes the firearm more dependable and better equipped to perform when needed.

Read More: How to Resolve Remington 740 Problems Fast.

4. Heavy Recoil Spring:

The recoil spring issue is a minor inconvenience with potentially significant ramifications. The stiff spring can affect the charging handle, making cocking the weapon a strenuous task.

When faced with an overly stiff or oddly positioned recoil spring, maintaining a firm grip and using muscle to tackle the firearm becomes necessary.

This can be particularly challenging in a tense situation, where the last thing one needs is to work on the charging handle.


To address the recoil spring issue, owners have found relief by adding rubber tubing to the charging handle or investing in an aftermarket extended bolt handle. These modifications make the cocking process less strenuous, providing a temporary fix.

However, upgrading to an aftermarket recoil spring is recommended for a permanent solution. This improvement significantly enhances the weapon’s reliability, ensuring a smoother and more enjoyable shooting experience.

If you’ve experienced the discomfort of struggling with the charging handle, this upgrade is a game-changer.

My Final Conclusion:

After thoroughly exploring the Kel-Tec Sub 2000 Gen 2 firearm, it’s clear that while it has flaws, it remains an excellent piece of hardware.

Recoil spring stiffness, barrel issues, and firing issues can be finicky and initially induce a sense of doom and gloom. However, viable solutions are available.

Deal-breakers can be solved by ranging from recalls to switching out trigger springs and using higher-quality ammo.

Despite its shortcomings, the Sub 2000 Gen 2 proves reliable and fun to shoot once these hurdles are overcome. While sending it back for repairs may seem like a hassle, the joy of field testing after fixes makes it all worth it.

Ultimately, the Kel-Tec Sub 2000 Gen 2 is a worthy addition to any gun enthusiast’s collection.

My Friends Feedback:

During a shooting outing, my friend recently shared his user experience with the Kel-Tec Sub 2000 Gen 2. Equipped with Glock 17 magazines, he loaded a few rounds and engaged the charging handle. However, a round failed to chamber due to an issue with the safety button, requiring a repair.

Despite this hiccup, the AR-style 9mm rifle offered an enjoyable shooting experience once the trigger was pulled. Following the outing, he eagerly sent off the firearm for repair, appreciating the exemplary service provided by Kel-Tec.

Another friend shared his experience with trigger group adjustment on the Kel-Tec Sub 2000 Gen 2. Using parts from M*Carbo, he carefully disassembled the trigger group using tools like an action wrench and strap wrench.

After applying Goop adhesive and a drop of oil, he encountered a tricky problem with reassembly. However, after watching a helpful video tutorial, he completed the adjustment, ensuring a smoother shooting experience.

Lastly, another friend, a left-handed shooter, shared his impressions of the Sub 2000 Gen 2 during a visit to the range. Using Glock 17 magazines, he found the rifle easy to handle despite being designed for right-handed users.

However, a few rounds failed to feed correctly, prompting him to contact Kel-Tec for potential problems. Despite some initial hiccups, he praised the firearm’s reliability and plans to continue spreading the word about its capabilities.

Kel-Tec Sub 2000 Gen 2 Problems
Kel-Tec Sub 2000 Gen 2 Problems

Common Questions Asked About Kel-Tec Sub 2000 Gen 2 Problems:

How far is a Kel Tec Sub 2000 accurate?

My accuracy remained exceptional despite the trigger pull being just over 7 pounds. Utilizing iron sights from a sandbag rest, I consistently achieved 3½-inch groupings at 50 yards. Upon attaching the Aimpoint optic, precision surged to a surgical level, effortlessly striking scattered orange clays across the 50 to 100-yard range with pinpoint accuracy.

Is the Kel Tec Sub 2000 good for home defense?

The Kel-Tec Sub-2000 stands out as a versatile carbine. Its foldable capabilities, compact design, and compatibility with multiple pistol magazines make it an excellent choice for a survival firearm to stow in your backpack.

What is the effective range of a Kel-Tec sub 2000?

The Kel-Tec SUB-2000, or SUB-2000, fires 9×19mm NATO rounds at 1400 FPS with an effective range of 150 yards (140 meters). It accepts Glock, Beretta, CZ75B, Smith & Wesson, and SIG Sauer pistol magazines, including 10 to 33-round mags and a 50-round drum. Equipped with iron sights for accuracy.

Can you put optics on a Kel-Tec Sub 2000?

Compatible with the majority of widely-used red dot optics designed for MIL-STD 1913 Picatinny Rails, the M*CARBO Optic Mount is the perfect solution when seeking a dependable scope mount for your KEL-TEC SUB-2000.

Is the Kel Tec Sub 2000 illegal now?

The stock Kel Tec Sub 2000 is prohibited in California, but by making certain adjustments, it can comply with state regulations and be legally owned.

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