Glock 34 vs 17 (2024 UPDATED) Read Before You Buy

Glock 34 vs 17 - Handgun Showdown
Alfred Mendoza
When it comes to big and striker-fired 9mm pistols, our top choices boil down between the Glock 17 vs Glock 34 since they’re much alike. Both pistols are popular with law enforcement officers and many gun enthusiasts because of their reliability and overall flexibility. But aside from the 0.8 inches barrel length difference, they also have distinct intended uses. Do these differences really matter?

The difference between the two Glocks is their design as either one works excellent as a home defense gun. However, G34 features a long barrel at 5.31 inches, making it suitable for open carry and shooting competition. Consequently, you’ll notice approximately 7.5 inches extended sight radius.

Yet, the smaller size of the 8.03×1.26×5.47 inches G17 might work best for you if you’re looking for a full-sized pistol for concealed carry. Besides, some also buy a G17 to use when competing.

Read next: Best Shooting Belt for Competition

Specification Chart

Glock 17

  • Brand: Glock
  • Height: 5.47 inches
  • Weight (empty mag): 24.87 oz 
  • Length: 8.03 inches
  • Trigger: Striker-fired
  • Barrel: 4.49 inches
  • Calibers: 9mm Luger
  • Capacities: 17/19/24/31/33 rounds

Glock 34

  • Brand: Glock
  • Height: 5.47 inches
  • Weight (empty mag): 25.93 oz 
  • Length: 8.82 inches
  • Trigger: Striker-fired
  • Barrel: 5.31 inches
  • Calibers: 9mm Luger
  • Capacities: 17/19/24/31/33 rounds

Detailed Comparison

Glock 34 & Glock 17 Pricing

Regardless of the gun generation you are going to buy, the 17 is more affordable vs Glock 34. For budget-conscious gun owners, you could get even up to a hundred dollar savings. Besides, if you want to have a better performance, you can utilize that extra bucks for practice ammunition when going on the range at any time.

For other popular handguns, check out this Sig Sauer P365 vs P320 article here.

Design & Ergonomics

In essence, the Glocks have the same frame but with different slides and barrels. G17 has a shorter slide of 7.32 inches compared to the 8.15 inches of the other gun. The G17 has a shorter length as well.

Based on our research, many users used to complain about the uncomfortable carry handle of the earlier versions of the G17. Now, the Gen4 models come with adjustable backstraps for good ergonomics.

glock 34 design

Ammunition - Glock 17 vs 34

As reflected on the specs chart, you can get a standard magazine capacity of 17 rounds with extended mags of up to 33 on both guns. Like several other guns, Glock only recommends jacketed ammo for both.

On the G17, we found that the best ammo has velocities between 975 fps to 1350 fps across various bullet weights. Yet, G34 could get you a little extra speed vs Glock 17, which would allow better expansion and penetration.

Looking for magazines? Check out the best 458 SOCOM magazines here.


The two guns are striker-fired, which would give you the same consistent pull, with a trigger distance of 2.83 inches. Even so, G17’s 6.29lb trigger pull is a bit heavier than that of the 5.4lb pull of the other.

For us, a lighter trigger pull is greater, so we could focus more on aiming without thinking if it shoots. Nonetheless, we noticed that both triggers are gritty, although both only need a higher round count to make it softer. 

Read: What’s the Best Glock Trigger Connector?

Glock 17 & Glock 34 Safety

All Glock guns include its signature Safe Action System built into its trigger. It contains three automatic and independently-operating safeties: trigger safety, firing pin safety, and drop safety.

But other than this, Glock designed the handguns without any external safety features. Overall, it’s a draw for both guns in terms of safety. Learn how to disassemble a Glock mag here


glock sights

G17 comes with a white dot front sight and a U-notch fixed rear sight. Whereas, the competition handgun has an adjustable rear sight and offers a longer sight radius, giving it an advantage on accuracy.

Likewise, if you’re a Glock fan, you’ll know that their standard plastic sights are probably among the most common things that handgun owners don’t like. Still, you can get away with this one by changing your Glock sights with aftermarket night sights.

Glock 34 & 17 Accuracy

Being an accurate pistol is one thing but maintaining that accuracy in rapid firing is a different one. Given this, both guns didn’t disappoint during the time when we shot them. We can easily shoot at 15 and 25 yards. However, if we need to choose, the design and features of the 34 make it a little more advantageous in terms of accuracy.

Glock 17 Pros & Cons



Glock 34 Pros & Cons



Glock 17 or Glock 34? We Choose…

Between the Glock 17 or 34, we choose Glock 34. Glock built them with the same frame, technology, and internal safeties. However, its barrel’s size and slide, radius sight, and additional velocity offer various advantages, especially in competitions.

Those who own this gun boast about the expansion and penetrating power of its ammunition as well as the fast and accurate target acquisition.Yet, if you only want to get defense pistols that might best fit your budget, there’s nothing much that a G17 can’t do.

If you want another great read, here’s our CMMG barrel review

Our #1 Recommendation

Glock 34

4 thoughts on “Glock 34 vs 17 (2024 UPDATED) Read Before You Buy”

  1. I’m not sure how old this article is but you listed one of the speeds as 134 fps. I’m guessing you meant to say 1340 fps.

  2. Alton R Swayne JR

    have a Glock 17 pistol and recently got an aftermarket Glock 34 Custom Slide for versitility. Ive been told that the longer 34 slide is interchangeable with the 17, and should should function the same since the frame and intrernal parts are the same. However, I took it to the range and the pistol wouldn’t fire with the 34 slide. My question: is there adifferent component required (ie; connector, extractor, or trigger) for the 34 to fire properly on a Glock 17 frame?

Leave a Comment

Your email address will not be published. Required fields are marked *