Does a Glock 45 Fit a Glock 17 Holster?
You can’t reliably use a Glock 17 holster for a Glock 45 because the Glock 45 has a longer grip that often prevents proper fit and retention.
While the slide dimensions are similar, the extended grip can cause the holster to lose stability and security, risking accidental dislodging or poor concealment.
If you want better retention and safety, you’ll need a holster made specifically for the Glock 45.
Keep exploring to understand why this difference matters.
Key Takeaways
- Glock 45 shares slide dimensions with Glock 17 but has a longer grip, affecting holster compatibility.
- The longer grip of Glock 45 often prevents a secure fit in Glock 17-specific holsters.
- Using a Glock 17 holster for Glock 45 can reduce retention and increase risk of accidental dislodging.
- Glock 17 holsters may not fully cover the Glock 45’s extended grip, impacting concealment and security.
- For proper fit and safety, use holsters specifically designed or modified for the Glock 45.
Does the Glock 45 Fit in Glock 17 Holsters?

Although the Glock 45 shares similar slide dimensions with the Glock 17, its longer grip usually prevents it from fitting properly in holsters made specifically for the Glock 17. When you try to use a Glock 17 holster, the grip length difference affects compatibility, especially around the magazine well. This can compromise retention and concealment since the holster may not fully cover the extended grip.
While the Glock 45 might slide into some Glock 17 holsters, it won’t offer a secure fit without holster adjustment. Custom holster makers often modify Glock 17 holsters to support the Glock 45’s longer grip, improving retention and fit. If you plan open carry, ensuring proper compatibility and holster fit is critical for safety and comfort.
When Glock 17 Holsters Don’t Fit the Glock 45

When you try to use a Glock 17 holster for your Glock 45, you’ll often find it doesn’t fit properly because the longer grip of the Glock 45 extends beyond what the holster is designed to hold. This difference in grip length affects holster coverage, leaving part of the grip exposed and reducing retention.
As a result, the Glock 17 holster’s compatibility with the Glock 45 is limited, increasing the risk of accidental dislodging and compromising concealment. You might notice your gun belt feels less secure, and the holster doesn’t sit as comfortably.
Without proper holster adjustment or a model specifically molded for the Glock 45, you won’t get the secure fit and retention you need. For ideal performance, choose holsters designed with the Glock 45’s dimensions in mind.
Frequently Asked Questions
Will a Glock 17 Holster Fit a Glock 45?
A Glock 17 holster might fit your Glock 45, but it often won’t fit perfectly due to grip length differences.
You’ll want a holster molded specifically for the Glock 45 to guarantee proper retention and safety.
What Glocks Fit in a Glock 17 Holster?
You’ll find that Glock models like the Glock 17, Glock 22, and Glock 45 usually fit in a Glock 17 holster.
Just make sure the holster’s adjustable or designed for full-sized Glocks to guarantee proper fit and retention.
Are the Glock 17 and Glock 45 the Same?
You can’t judge a book by its cover—the Glock 17 and Glock 45 aren’t the same. You’ll notice the Glock 45 has a longer grip and compact slide, differing from the full-size frame of the Glock 17.
What Holster Is Compatible With Glock 45?
You’ll want holsters designed for Glock 45, Glock 19X, or Glock 17 models with adjustable retention.
Always check compatibility with your Glock 45’s generation to guarantee a secure, comfortable fit before buying.
Conclusion
You might be surprised to find that your Glock 45 fits perfectly in a Glock 17 holster—like two puzzle pieces clicked together by coincidence. However, don’t count on it every time, since slight design differences can cause fit issues.
So, while you might get lucky with a Glock 17 holster, it’s smart to test it out first. Investing in a holster made specifically for the Glock 45 will guarantee a secure and comfortable carry experience.
For the best fit and reliability, always choose a Glock 45 holster designed for your firearm to ensure safety and convenience.