Glock 20 Gen 4 Problems: An In-depth Review & Solutions

The Glock 20 Gen 4 is renowned worldwide for its blend of advanced technology and unique design. However, like any firearm, this powerhouse isn’t immune to difficulties, issues, or complaints. In this post, we delve deep into the Glock 20 Gen 4 problems, shedding light on these challenges and offering solutions where possible.

A Foreword on Glock 20 Gen 4

Predominantly crafted with precision, the Glock 20 Gen 4, chambered in 10mm auto, is capable of firing at impressive velocities. The gun employs advanced ergonomics and design, offering users exemplary shooting comfort while increasing their accuracy. Despite being a revamped version of the preceding versions, some users still experience difficulties when operating this firearm.

The Weight Factor

Grappling with the Glock’s Heftiness

One common complaint about the Glock 20 Gen 4 is its weight. It is substantially heavier than most guns in its category, meaning carrying it around can be a bit inconvenient.

The Glock 20 Gen 4 weighs 39.54 ounces loaded, which is a significant jump from the lighter Glock 19 Gen 4, weighing 30.16 ounces when loaded. However, part of this weight lends to the gun’s recoil management, a necessary feature when dealing with the powerful 10mm auto cartridge.

The Recoil Quandary

The Glock’s Muzzle Sprint

Recoil is the second most commonly discussed issue when talking about the Glock 20 Gen 4. The firearm is chambered in 10mm auto, which is an incredibly stout round with significant recoil. While the Glock copes well with the recoil of lighter loads, when it comes to shooting full power 10mm loads, the gun does have noticeable recoil.

However, it should be noted that this is not a “problem” with the firearm, per se. Recoil is a natural byproduct of the physics involved in shooting, especially with a powerful round like the 10mm auto.

The Ammo Issue

Restrictions in Fully Utilizing the 10mm Round

Some Glock 20 Gen 4 users have expressed frustrations about the firearm not fully utilizing the power of the 10mm round. The Glock 20’s barrel has a partially unsupported chamber. This feature means that there are constraints in the firearm’s ability to take full advantage of loads that use all of the potential power of the 10mm round.

However, users have come up with solutions, although they involve additional expenses. Replacing the factory barrel with a fully supported aftermarket barrel allows users to shoot powerful 10mm loads without worrying about the potential for dangerous overpressure situations that the factory barrel could potentially cause.

The Issue of Frame Flex

Handgrip Flexibility Not Always Convenient

Another mark against the Glock 20 Gen 4 is the frame flex. The firearm’s polymer frame tends to flex a bit when firing the more powerful 10mm loads. This flex can be enough to cause some shooters discomfort, especially those not used to dealing with such recoil.

Solving the Glock’s Problems

A User’s Guide to Troubleshooting

  1. Addressing the Weight Issue: Consider using a belt and holster specially designed for carrying heavier handguns.
  2. Managing Recoil: Practice with lighter 10mm loads before transitioning to full power loads to train yourself to handle the Glock’s recoil.
  3. Solving Ammo Issue: If you want to experiment with high-powered 10mm loads, consider investing in a fully supported aftermarket barrel.
  4. Frame Flex Issue: Train yourself to grip the firearm correctly to manage the frame flex.

In conclusion, while the Glock 20 Gen 4 has its set of challenges, its benefits transcend these issues, particularly for users who desire the powerful 10mm cartridge’s advantages. And as with any tool, familiarity and regular use can help overcome the struggles new users may initially face.

Frequently Asked Questions

1. Is the Glock 20 reliable?

Yes, the Glock 20 is known for its reliability. It is a popular choice among many law enforcement agencies and has a reputation for being a durable and dependable firearm.

2. Why did Glock discontinue Gen 4?

Glock discontinued the Gen 4 models of their handguns to make way for the newer and improved Gen 5 lineup. The Gen 4 pistols had some minor drawbacks that Glock addressed in the Gen 5 models, such as improved trigger, ambidextrous slide stop, and better ergonomics.

3. Which is better, Glock 20 Gen 3 or Gen 4?

The answer to this question depends on personal preference and specific needs. The Gen 4 offers several enhancements over the Gen 3, including interchangeable backstraps for better grip customization, a dual recoil spring system for reduced recoil, and a larger magazine release. However, some shooters may prefer the simpler design and lower price of the Gen 3.

4. What issues do Glocks have?

Glocks are generally reliable firearms, but like any mechanical device, they can experience issues. Some common issues reported with Glocks include failure to feed or extract, problems with the trigger, or issues with the magazine. However, it’s important to note that these issues are relatively rare and can often be resolved with proper maintenance and care.

5. How often should I clean and maintain my Glock 20?

It is recommended to clean and maintain your Glock 20 regularly to ensure optimal performance. After every shooting session, a thorough cleaning is recommended to remove any dirt, debris, or fouling that may have accumulated. Regular maintenance should also be performed, including lubrication of the slide, barrel, and other moving parts.

6. Can I use any ammunition in the Glock 20?

The Glock 20 is chambered in 10mm Auto, and it is designed to handle a range of factory-loaded ammunition within the specified pressure limits. However, it is important to follow the manufacturer’s guidelines and not use ammunition that exceeds the recommended pressure levels, as this can lead to firearm malfunctions and potential damage.

7. Can I modify my Glock 20?

Yes, Glock pistols have a reputation for being highly customizable. You can modify various aspects of your Glock 20, such as adding aftermarket sights, changing the trigger, or installing different grip options. However, it’s important to ensure that any modifications made are legal, do not compromise the reliability or safety of the firearm, and are performed by a qualified gunsmith if necessary.

8. Can I use Glock 21 magazines in the Glock 20?

Yes, Glock 21 magazines are fully compatible with the Glock 20. Both firearms are part of the same series and share the same magazine design, so you can use Glock 21 magazines interchangeably with the Glock 20 without any issues.

9. Is the Glock 20 suitable for concealed carry?

The Glock 20, being a full-size handgun with a large magazine capacity, may not be the ideal choice for concealed carry for most individuals due to its size and weight. However, some shooters with the right clothing and carrying method may find it manageable. Glock does offer compact models like the Glock 29, which are better suited for concealed carry purposes.

10. Can the Glock 20 shoot .40 S&W ammunition?

No, the Glock 20 is chambered in 10mm Auto and should only shoot 10mm ammunition. While some Glock models have interchangeable barrels that allow different calibers, the Glock 20 is specifically designed for 10mm Auto and should not be fired with .40 S&W ammunition.

Hi! I'm Brian, a born-and-raised outdoorsman with a lifelong passion for hunting. I've spent countless seasons in the field, tracking game and perfecting my craft. Over the years, I've had the privilege of hunting in some of the most beautiful and rugged landscapes this world has to offer.
I've learned a lot along the way and I'm always eager to share my experiences with others. I firmly believe in the importance of ethical hunting practices and and sustainable use of our natural resources, and I do my best to promote these principles in all of my adventures. Hunting is more than just a hobby for me, it's a way of life.
Brian Clark
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