G43X And G48: Solidifying The Glock 9mm Slimline Series

G43X And G48: Solidifying The Glock 9mm Slimline Series

G43x G48

The Glock 43, Glock 43X and Glock 48 have burned like a prairie fire through the concealed carry market. Here's a look a what's driven their popularity.

What Are The Difference Between Glock Slimline Nines:

  • The G43 has a 3.41-inch barrel and 6-round capacity.
  • The G43X has a 3.41-inch barrel and 10-round capacity.
  • The G48 has a 4.17-inch barrel and 10-round capacity.

The U.S. concealed-carry market has been booming for many years now, and it shows no signs of stopping. As the concealed-carry market has become more and more popular, so have the micro-compact guns that fill the segment, and no caliber is as popular as the 9mm. It’s a full-power load that is able to be packed into a small package, so it’s no wonder why it’s so popular.

Glock Reference Guide
This post is an excerpt from Glock Reference Guide, 2nd Edition available at GunDigestStore.com.

The Glock Slimline 9mms have been very popular, ever since their introduction, starting with the first Slimline 9mm, the G43, in 2015. The G43 design is based off the G42, a .380 ACP caliber. There was a slimline pistol prior to that, the G36, but its design was based off the original Glock. The G42 design (and thus the Slimline 9mm) is different from the traditional Glock design, incorporating significant design changes.

The G43 came out just as the first edition of this book was going to print, and the Slimline 9mm lineup has now expanded to include the G43X and G48.

Learn More: Glock Reviews You Need To Read


Prior to the introduction of the G43, shooters had been clamoring for a single-stack 9mm Glock for years. And when Glock finally gave them one, in the form of the G43, people were lining up on waiting lists to get their hands on it.

Glock took heat from a lot of fans after not releasing a single-stack 9mm at the 2015 SHOT show. Some took it a little too personally and filled the Internet forums with overdramatic vows never to buy another Glock. Further salt was thrown on the “wounds” of fans, by the other makers who have had single-stack 9mms on the market for several years now.

I believe Glock was simply taking a little extra time to make sure it got it right, after taking a hit when the G42 had some issues coming out of the gate (mostly malfunctions when using overpowered and underpowered ammunition). It was easily remedied with modifications to a few parts, but Glock isn’t a company that takes well to having reliability issues. So, Glock engineers took a little extra time with this one, and judging by my experience, as well as what I’ve seen from others, with the G43, they got it right.


I get to test a lot of guns, which often requires me to carry the gun for EDC, especially when the gun is designed to be a carry gun. However, my go-to carry gun is a Glock: The G19 when my attire permits, the G43 when my attire doesn’t. I’m going to be honest, however, when it released it in 2018, SIG Sauer had me with the P365. Ten rounds in a micro-compact pistol that shoots like a larger pistol, it truly is a game-changer. And it did change the game, because now you see responses from other companies, including Glock. When Glock announced the G43X and G48, I was extremely happy. While the P365 is a fine gun, and has performed perfectly for me, my comfort level really is with the Glock. So, when the G48 (and G43X) were announced, I couldn’t have been happier.


You might wonder why I went out of numerical order and placed the G43X after the G48. It’s because you really needed to get to know the G48 before the G43X, since the G43X is a hybrid of the G43 and G48, a crossover, which is designated with the “X”. If you take the slide of the G43 and place it on the frame of the G48 (which is exactly what Glock did), you get the G43X. In fact, you can do it yourself. If you already own a G43, and buy a G48, combine the G43 slide and G48 frame and you have yourself a G43X.

By using the G48 frame, the G43X gives you 10 rounds, the same capacity as a G26 and SIG Sauer P365, but with a longer grip than those guns have.

Learn More About Glock Options

Editor's Note:This post is an excerpt from Glock Reference Guide, 2nd Edition available at GunDigestStore.com.


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