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Glock 19 Gen 4 Review [2023]

The Glock 19 Gen 4 is a fantastic semi-automatic handgun. And although it has been out for a while, it is still one of the most widely used pistols worldwide. Known for its efficiency, durability, and reliably, this handgun is ideal for first-time, as well as veteran gun-owners, alike.

Its perfect size makes it an excellent concealed carry pistol and as well as a backup for both self and home defense. So, let’s find out all about it in this Glock 19 Gen 4 Review…

Glock 19 Gen 4
Photo by Triple Bravo


Austrian born, Gaston Glock, designed the original Glock back in 1981. Shortly after, it gained so much popularity that it made its way into the Austrian Army. The pistol soon took off all over Europe, and in 1986 it had even become popular in the United States. In 1988, the production for the Glock 19 began, and the rest is history.

Overview and Specifications

Overall, the Glock 19 Gen 4 continues to remain popular, despite the release of the 5th generation. The G19 Gen 4 is known to go through thousands of rounds without a single malfunction, which is the definition of durability and reliability.

As for specifications, here is a rundown.

  • Caliber: 9mm
  • Capacity: 15
  • Barrel Length: 4.02 inches
  • Action: Double Action
  • Weight: 21oz
  • Front/ Rear Sight: Fixed
  • Night Sights: Optional

Material and Construction

The Gen4 features a reinforced polymer frame with a steel barrel and slide. The grip has fiber grooves, again made out of polymer, and the slide finish is made out of black melonite. The sights are once again polymer and easily adjustable.

Glock 19
Photo by legia1982


The G19 Gen4 consists of three different safeties, giving the user peace of mind. They are the trigger, firing pin, and drop safety.

However, keep in mind that if the magazine is still in the chamber, it will look clear when the slide is pulled back, but when it slides forward, it will put a round in the chamber. Therefore, always take out the magazine, then cock it back, to make sure the chamber is clear.

The trigger will be cocked forward and sticking out more when there is no round in the chamber and no magazine in the pistol.


As with everything, over time, certain components of the pistol will require replacement. In order to avoid jams, both the trigger and spring coils will be needing. It is always better to replace the spring coils with originals, not aftermarket models, because the increase in reliability and durability is well worth the small additional cost. This needs to be carried out every 5,000-8,000 rounds.

As for the slide-lock spring and trigger spring, these should last up to around the 10,000 round mark.

Apart from that, all it will need is the usual occasional lubrication to keep the trigger pull smooth.

Modification and Customization

The first and probably most necessary modification is to replace the plastic sights with any set of iron sights you prefer.

A talon grip can also be added to improve the grip, along with an extended magazine release to make dropping and changing mags much easier and faster. For those with larger hands, you can change the base plate for a larger one, and undercutting the trigger guard will give the user a snug grip.

For those with extra cash to spend, a Reflect Sight can be added, and the red dot can be replaced.

The G19 G4 is highly customizable, both with Glock and aftermarket parts, so you can modify it as required for your needs.


For the quality you’re getting, the G19 is very reasonably priced, making this a highly accurate and reliable weapon that is affordable to many.

Glock 19 Gen 4 Review Pros and Cons


  • Superb all-purpose design.
  • Accurate and reliable.
  • Reasonably easy to control.
  • Numerous safety features.
  • Excellent capacity for its size.
  • Easily concealed.


  • Some find the grip slightly uncomfortable.
  • Plastic sights most definitely need replacement.

More from Glock

If you want to know how the G19 compares to other handguns, then please check out our Glock 19 vs Glock 26 reviews and our Sig Sauer p320 vs Glock 19 reviews.

If you’re interested in other Glock products, take a look at our comparisons of the Glock 43 vs MP Shield and the Glock 26 vs Glock 43. You may also be interested in our in-depth reviews of the Glock 43X.

Glock 19 Gen 4 Review Conclusion

From professionals to aficionados to simply those who want to protect their loved ones and homes. The Glock 19 Gen 4 is a fantastic choice. In fact, it is currently a standard issued U.S. Military-grade weapon and used by many police departments nationwide, which shows the quality, accuracy, and reliability it offers.

In addition, the weapon carries 9mm ammo, making it affordable to own, easily accessible, and ammo sharing gives it a major advantage. All an all, it is easy to see why many have fallen in love with this pistol. The G19 is an excellent handgun with the same accuracy after serval thousand rounds as when you first fire it, basically, continual flawless performance — highly recommended!

Happy and Safe Shooting!

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