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Glock 17 vs. Glock 19: What's the Difference?

Edited by Janet White || By Harlon Moss || Updated on October 10, 2023
Glock 17 and Glock 19 are both semi-automatic pistols by Glock, with the G17 having a longer barrel and slide, offering slightly higher capacity, while the G19 is more compact for concealed carry.

Key Differences

Glock 17 is known for its robustness and reliability in various conditions, such as extreme heat and cold. Originating from Austria, it was created to comply with the Austrian Army’s needs and became popular worldwide. Glock 19, on the other hand, emerged as a compact variant of Glock 17, with design alterations to make it a more concealed weapon.
In terms of size, Glock 17 is notably larger, making it a preference for open carry in military and police service. The size also offers a slightly larger ammunition capacity. Glock 19, however, finds its niche in the concealed carry market due to its smaller, more compact size, without drastically reducing the ammo capacity.
In many instances, Glock 17 is often chosen for situations that may require a higher ammunition capacity and where concealed carry is not a priority. This is because the Glock 17 is recognized for its stability and ease of use in rapid fire situations. The Glock 19 is celebrated for its versatility, being apt for both open and concealed carry, while also being considerably effective in rapid-fire scenarios due to its reduced muzzle flip.
When it comes to versatility, the Glock 19 might have an edge due to its balanced size and reasonable ammunition capacity. This model can be effectively used by various law enforcement agencies, military personnel, and civilian users alike. In contrast, Glock 17, while being supremely reliable, finds its best use in scenarios where concealing the weapon is not a primary concern, like in open carry situations, largely due to its slightly larger size.
For users with larger hands, or those who prioritize stability and accuracy in situations that might involve longer-distance firing, the Glock 17 might be more appealing. For those who prefer a compact firearm, which is easier to conceal but still offers reliable performance, the Glock 19 might be the weapon of choice.

Comparison Chart




Open carry, Service weapon
Concealed carry, Versatile

Barrel Length

Longer (4.49 inches)
Shorter (4.02 inches)


Slightly higher capacity
Slightly lower capacity


Widely used in militaries
Popular among civilians

Glock 17 and Glock 19 Definitions

Glock 17

The Glock 17 often serves as a service weapon in various military and law enforcement agencies worldwide.
The Glock 17 is frequently spotted in holsters of police and military personnel due to its recognized efficacy and reliability.

Glock 19

Popular among law enforcement and civilians alike, the Glock 19 offers reliable performance in a slightly smaller package than the Glock 17.
The Glock 19 has found favor among both police officers and civilian carriers for its compact yet efficient design.

Glock 17

The Glock 17 is a 9mm semi-automatic pistol designed and produced by Austrian manufacturer Glock.
The Glock 17, favored by many militaries, is renowned for its reliability and ease of use.

Glock 19

The Glock 19, while compact, does not significantly sacrifice ammunition capacity, making it versatile for various users.
The Glock 19 is often recommended to new shooters due to its user-friendly size and reasonable magazine capacity.

Glock 17

As the original model, the Glock 17 has spawned various adaptations and modifications throughout the years.
The Glock 17 has paved the way for numerous other models, each adapted for different use-cases.

Glock 19

The Glock 19 is a compact 9mm pistol known for its balance of capacity and concealability.
Many concealed carry license holders prefer the Glock 19 due to its manageable size and reliable function.

Glock 17

Known for its larger frame, the Glock 17 offers a slightly higher ammunition capacity than some other models.
The Glock 17, often used by law enforcement, provides additional rounds for potentially extended engagements.

Glock 19

With its shorter barrel and slide, the Glock 19 provides an alternative for those seeking a more concealable service weapon.
The undercover officer selected the Glock 19 for its blend of concealment and firepower.

Glock 17

Noted for its durability, the Glock 17 can function in various adverse conditions, such as extreme heat, cold, and exposure to water.
The military opts for the Glock 17 due to its exceptional performance even in harsh environments.

Glock 19

The Glock 19 can be adapted with various aftermarket modifications, such as sights, grips, and triggers, making it highly customizable.
Many owners modify their Glock 19 with custom grips and sights to better suit their individual preferences.


Are the Glock 17 and 19 available in different generations?

Yes, both models are available in various generations, each introducing different features and improvements.

What is the Glock 17?

The Glock 17 is a semi-automatic 9mm pistol, widely recognized for its reliability and use in various global law enforcement agencies.

Which model, the Glock 17 or 19, is more popular for concealed carry?

The Glock 19 is generally more popular for concealed carry due to its smaller size.

What distinguishes the Glock 19?

The Glock 19 is known for its compact size while maintaining a practical ammunition capacity, making it a popular choice for concealed carry.

Are Glock 17 and 19 available in different calibers?

The specific models Glock 17 and 19 are 9mm, but Glock produces similar models in various calibers.

Is the Glock 17 larger than the Glock 19?

Yes, the Glock 17 has a longer barrel and slide compared to the Glock 19.

Can the Glock 19 use Glock 17 holsters?

Depending on the holster design, some Glock 17 holsters may accommodate a Glock 19.

Can Glock 17 and 19 be purchased worldwide?

Availability depends on local laws and regulations regarding firearm purchase and ownership.

Can the magazines of the Glock 17 fit the Glock 19?

Yes, Glock 17 magazines can fit and function in the Glock 19, but not vice versa due to size differences.

Are Glock 17 and 19 suitable for beginners?

Both models are known for their reliability and ease of use, making them suitable for beginners with proper training.

Which has a higher magazine capacity, the Glock 17 or 19?

The Glock 17 typically has a higher standard magazine capacity compared to the Glock 19.

Are both Glock 17 and 19 used by law enforcement?

Yes, both models are used by law enforcement agencies worldwide due to their reliability and performance.

What is the primary material used in the Glock 17 and 19 frames?

Both models use a high-strength nylon-based polymer for the frame construction.

What are the standard magazine capacities for the Glock 17 and 19?

The standard magazine capacities are 17 rounds for the Glock 17 and 15 rounds for the Glock 19.

Can the Glock 17 and 19 handle +P ammunition?

Yes, both the Glock 17 and 19 are rated to handle +P (overpressure) 9mm ammunition.

Is there a price difference between Glock 17 and 19?

Prices can be similar but may vary based on the generation, dealer, and any included accessories.

How often should Glock 17 and 19 be cleaned?

Regular cleaning is recommended, typically after each use, to ensure reliability and longevity.

Are Glock 17 and 19 considered reliable and durable?

Both models are widely recognized for their reliability and durability in various conditions and situations.

Which Glock model is older, the 17 or the 19?

The Glock 17 is older, introduced in 1982, while the Glock 19 was introduced in 1988.

Can both Glock 17 and 19 be customized?

Yes, both models have a wide range of aftermarket parts available for customization.
About Author
Written by
Harlon Moss
Harlon is a seasoned quality moderator and accomplished content writer for Difference Wiki. An alumnus of the prestigious University of California, he earned his degree in Computer Science. Leveraging his academic background, Harlon brings a meticulous and informed perspective to his work, ensuring content accuracy and excellence.
Edited by
Janet White
Janet White has been an esteemed writer and blogger for Difference Wiki. Holding a Master's degree in Science and Medical Journalism from the prestigious Boston University, she has consistently demonstrated her expertise and passion for her field. When she's not immersed in her work, Janet relishes her time exercising, delving into a good book, and cherishing moments with friends and family.

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