4 Most Common Glock 34 Problems And How To Fix Them

Last Update:

Right, let’s kick this off. I had the opportunity to give the Glock 34 a good run for its money. Over time, I’ve come to understand its ins and outs. I’ve grappled with this firearm under various conditions and situations, only to find myself bumping into a few pesky Glock 34 Problems.

Let me tell ya, it wasn’t always smooth sailing. There were times when I faced some downright frustrating issues. This included a pesky failure to feed, the slide lock misbehaving, cases not ejecting, and worse of all, failure to fire. 

But don’t sweat it, Ire gonna lay it all out for you, giving you a deep dive into these common problems, with solutions to boot.

Top 4 Glock 34 Problems & Solutions

1. Failure to Eject

During my comprehensive testing process, I noticed a consistent issue known as “failure to eject”. This was particularly evident while using 115-grain range ammunition. In such instances, the Glock 34 had a tendency to jam, leaving every few rounds unejected. 

This problem was puzzling and seemed to be triggered by a variety of factors. I identified potential culprits including the presence of optics on the pistol, increased mass of the slide, use of light ammunition loads, or even underpowered ammunition.


To rectify this situation, I tried several strategies. One effective solution was the use of factory ball rounds, specifically the W-W white box ball ammunition. In case the problem was persistent, I found it beneficial to send the firearm back to the manufacturer, Glock. 

They were able to service it swiftly and effectively. Regular cleaning and lubrication also proved invaluable in reducing instances of failure to eject. 

Furthermore, it’s worth noting that if your primary goal is to maintain the firearm’s ejection performance, refraining from adding optics is advisable.

2. Failure to Fire

Another challenge I encountered while testing the Glock 34 was a “failure to fire”. This was prominent with specific types of ammunition, such as the 147gr. Ranger and 115gr. White Box. 

I hypothesized that this could be due to the striker assembly being improperly lubricated.


In resolving this issue, it was critical to ensure that the firing pin passage remained free of any lubricant or oil. I performed a detail strip on the gun to check for parts that were unusually worn or not stock. 

For this purpose, having a second  Glock for comparison proved very beneficial. These steps, when undertaken together, contributed to a significant reduction in instances of failure to fire.

3. Failure to Feed

I were testing this Glock in the field and out of nowhere, I started experiencing a “failure to feed” with my PPU ammunition. I were left perplexed as every twentieth round, give or take, refused to feed. 

There was the possibility that the magazines or the ammunition were at fault, or even issues with the feed ramp or the slide.


After a thorough trial and error process, I found a way around. Trying out some 124-grain round-nose range cartridges did wonders. 

Cleaning the feed ramp and removing any potential burs seemed to solve my problem. And guess what? When all else failed, switching barrels or replacing the recoil springs did the trick.

4. Slide Lock Problems

Talk about shooting yourself in the foot. Quite literally, in this case. After firing just over 600 rounds, my Glock started acting up. 

The slide locked back in a way it wasn’t supposed to, especially when the magazine ran out of bullets. Some suggested it might be due to a misaligned coil spring or an extended slide stop.


I got down to business, ensuring the small coil spring in the levers’ center was straight. 

Switching out the extended slide stop with a regular one helped too. Also, using better quality ammo seemed to make a world of difference. Let’s not forget the importance of a clean, well-oiled gun.


The Glock 34 is undoubtedly a robust and high-performing firearm, but my field-testing experience has shown that it comes with its own set of quirks. From the ‘failure to eject’ to the ‘failure to fire’, the firearm sometimes proved to be a challenging puzzle to crack. 

However, every problem had a solution, and with a bit of ingenuity and persistence, I managed to keep the firearm running smoothly. 

All things considered, the firearm’s strengths, coupled with my practical solutions for its weaknesses, underline the Glock 34 ‘s commendable field performance.


Is Glock 34 better than 17?

The Glock 34, with its longer barrel and higher magazine capacity, is generally considered more accurate over longer distances than the Glock 17.

Why is the Glock 34 a competition gun?

The Glock 34 was developed specifically for target engagement accuracy, with features such as an extended barrel, longer slide, and elongated distance between sights.

Is Glock 34 or Glock 17 more accurate?

The Glock 34, owing to its longer slide and resulting longer sight radius, is typically seen as more accurate than the Glock 17, especially in long-distance shooting scenarios.

One Request?

I worked hard on this post to help the shooters community. it would help me a lot if you consider sharing it on social media network

BecauseSharing Is Caring..

Because Sharing Is Caring..

Photo of author


I'm Micheal, an avid shooter and hunting enthusiast from Texas. I'm a recreational shooter who loves to spend time at the range and enjoy learning about new firearms and gears. I love to write about guns and share my passion for shooting with others.

Leave a Comment