Glock G42: A Remarkable Handgun

By Bob Campbell published on in Ammunition, Firearms, Reviews

For most of my life I have carried what some refer to as big guns. The Chief’s Special is a backup. The Commander .45 is a carry gun. And I am familiar with practically every light pistol made in the past century, from the Harrington and Richardson SLP to the Walther PP Super. Some work better than others. Very few have service-gun reliability.

The very nice, slick SIG P230 is a great handgun, and there are not many others I trust.

GLOCK 42 Right Profile

The GLOCK’s well-designed cocking serrations are easy to grasp.

And frankly, compared to the current crop of compact 9mm handguns, the P230 is not that small.

Enter the Glock G42, a long-awaited and much heralded pistol. The GLOCK G42 is a slim, light and reliable .380 ACP pistol. To its credit, Glock did not attempt to build a pistol that stuffs 10 rounds into the frame.

There really is not anything quite like it.

The Glock G42 bears a resemblance to the Generation 4 Glock , with the same grip texture and magazine release, although it does not have the light rail or interchangeable back strap.

Features of the GLOCK G42

The pistol is a fresh design, building on proven Glock  principles. The G42 is a 6-plus-1 capacity pistol, thin, very thin, with a 0.95-inch frame and 0.825-inch slide. The pistol is only 4.25 inches tall and just short of 6 inches long and weighs 12 ounces unloaded. While some pistols pretend to be pocket pistols, the Glock G42 .380 ACP is a true pocket pistol.

An important difference between the Glock 42 and the other .380 pistols is that the G42 is not a blowback pistol. In these handguns, the slide blows to the rear off of a fixed barrel. The locked breech is the stronger system and is seldom used in pistols of this size and weight. An advantage of that operating mechanism is recoil and pressure are controlled more efficiently.

The pistol features dual recoil springs in the modern spring-within-a-spring Glock design. Another advantage of locked-breech design is that handloaders may load the cartridge a bit hotter. I do not wish to contribute to the delinquency of handloaders, but another locked breech .380 ACP pistol, once very popular, was the Star S Model.This was a strong locked-breech with which I experimented a few decades ago. However, .380 ACP ammunition has improved somewhat in the past decade, as I discovered while testing the G42.

GLOCK 42 profile view

The G42 is small enough to carry comfortably but large enough for proper hand purchase.

The pistol features a six-round magazine and comes with two magazines (supplying a pistol with only one magazine is ridiculous). The pistol’s trigger action, sights and appearance are typical GLOCK, and it feels good in the hand. I have never thought the GLOCK has a natural point; this pistol is an exception. Another exception is that it is made in America. Imports, exports and tariffs are heady political discussions, and the bottom line is that Glock  has given a lot of good folks in Georgia honest work. I like that.

The pistol operates in the same way as every other Glock . When you rack the slide, the trigger partially cocks, or is “prepped” in Glock parlance. The striker partially draws to the rear, and a long press of the trigger completes the job of cocking and releasing the striker, resulting in a 6-pound trigger compression. In my experience, the Glock trigger action may run from 5 to 6 pounds. The G42, however, feels lighter, which may be a result of the leverage of the small handgun. The RCBS registering trigger compression gauge does not lie.

The mechanics of the pistol are similar to the full-size Glock , with slight differences, such as the springs in the takedown lever and the slide stop’s design. That is understandable when the pistol is downsized to this degree.

Firing the Glock G42

GLOCK 42 Magazines, Loaded

GLOCK G42 magazines hold 6 rounds of .380 ACP ammunition.

After initial familiarization, I fired the G42. I had on hand no less than six types of .380 ACP ammunition. Considering the present ammunition shortage, that is a goodly amount.

I had:

  • Three types from Fiocchi, one ball load and one using a standard JHP.
  • The Extrema line, using the XTP bullet.
  • The CORBON DPX load, using the all-copper X bullet.
  • The new Winchester Defense load, using the PDX bullet.
  • The Hornady Critical Defense loading.

I will remove the suspense—there were no failures to feed, chamber, fire or eject.

The G42 is very comfortable to fire. In my experience, small guns are less reliable than larger pistols. There is simply a more crowded platform that invites the fingers to interfere with the slide stop or trigger. The Glock  platform is businesslike and manageable, even in this small pistol, and the G42 is never uncomfortable to fire. There was little difference between firing the hottest loads and the mildest ones. There was more push and more muzzle flip with the CORBON loading, yet nothing uncomfortable.

In my mind, that is the rationale for the light .380 ACP pistol; it is lighter than the 9mm and should kick less. I do not mind mastering a hard-kicking big bore, although when carrying a light caliber, the recoil should be light as well. The bottom line is that the pistol should be reliable. The Glock G42 meets all of those criteria.

Ammunition Performance

GLOCK 42, CORBON DPX Ammunition and ProChrono

Velocity results with CORBON were good.

Ammunition performance was an eye opener. As an example, the CORBON 80-grain DPX load averaged 1070 fps. That is impressive because the G42 barrel is a stubby 3.25 inches. The CORBON loading breaks right at 200-foot-pounds of energy. The heavier bullet loads exhibited respectable velocity. A defense load must demonstrate a balance between expansion and penetration. None of those loads fundamentally change my mind about the .380 ACP, and they do make the most of the caliber.

I found it interesting that the G42 is accurate enough to invite recreational shooting. Small sticks and the usual range bric-a-brac were easily addressed to 15 yards. It is accurate enough to serve for pests and reptiles at a reasonable range. The G42 is fast from concealed carry and comes on target quickly. I find it the best-handling and most accurate .380 ACP in my recent experience.

Glock has a winner in the G42.

Ammunition Test Results

Load Velocity 15-yard group
 Fiocchi 95-gr. FMJ  902 fps  2.5 inches
 Fiocchi 90-gr. JHP  908 fps  2.65 inches
 Fiocchi 90-gr Extrema  870 fps  2.0 inches
 CORBON 80-gr. DPX  1070 fps  2.75 inches
 Hornady 90-gr Critical Defense  881 fps  2.25 inches
 Winchester 95-gr. Defense  915 fps   2. 6 inches


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Do you have a GLOCK G42? What do you think of it? Or, if not, do you plan to check it out? Share in the comments section.


Bob Campbell is a former peace officer and published author with over 40 years combined shooting and police and security experience. Bob holds a degree in Criminal Justice. Bob is the author of the books, The Handgun in Personal Defense, Holsters for Combat and Concealed Carry, The 1911 Automatic Pistol, The Gun Digest Book of Personal Protection and Home Defense, The Shooter’s Guide to the 1911, The Hunter and the Hunted, and The Complete Illustrated Manual of Handgun Skills. His latest book is Dealing with the Great Ammo Shortage. He is also a regular contributor to Gun Tests, American Gunsmith, Small Arms Review, Gun Digest, Concealed Carry Magazine, Knife World, Women and Guns, Handloader and other publications. Bob is well-known for his firearm testing.

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Comments (58)

  • Jim Martin


    My G42 was purchased new in late 2015. I have since added the plus 2 magazine extentions, you will not believe the difference this makes to the over all comfort and control of this awesome little glock. It’s recoil to weight is not what you would expect from a small frame pistol, it’s almost unnoticed. As far as ammo choice, I shoot the speer gold dot 90 grain JHP for personal protection. It’s performance is the best as far as penetration and expantion, see the happy gunner ballistic charts. It’s never failed to perform every single time,and like the author I have shot several brands of ammo through it and not one problem. You hardly notice it while concealed carrying. I am a small framed man so it doesn’t stick out like it’s big brothers. So if you want a small light weight concealed carry pistol, this is the one for you. With this caliber and the mentioned ammo from speer, you have a concealed partner you can bet your life on.


  • Jeffrey Taylor


    I bought my G42 in Dec., 2015 (My Christmas present to me!) and finally got my 1st chance to shoot it yesterday, 3-24-’16. I used Remington102 gr. bjhp (whatever that means!) Out of 20 bullets, I had 3 failures to eject and 2 failures to reload. Up until yesterday, I’ve read many stories of people with the same problems, but 5 failures out of 20 is too many, especially for a Glock. I read several reviews where the XTP bullets had no problems, so I will try them next. I had a box with me but I was so pissed that I decided to run some .38 specials through my S & W, and some .22s through my other Smith Revolver. I figured the bugs were worked out by now but I guess not. I’ll try the XTPs next week. I live in the city (Pgh, PA) so I have a 1/2 hr. drive to the range.


    • Jeffrey Taylor


      Oh, by the way, the shots that did work were right on target at 25 yards. This was the 1st time I’ve shot a gun in at least 14 years, so, for a guy like me, that’s saying something for the accuracy of the little pocket pistol.


  • OldLawyer


    Yep the G42 is a handy little gun…it is 10″00 pm and open carry starts soon in your state…personally after 40+ years carrying a gun in law enforcement, I think it is tactically foolish to open carry….I train people that the first time a dangerous animal or criminal should suspect you are armed is when they see the first muzzle flash….now back on the subject, I have both the Glock 42 and 43 and have been impressed the both fire every hollow point or ball ammo I put thru them. I am especially pleased that they shoot all that cheap steel cased ammo you can buy…Glocks are not my favorite guns, but they are what I carry most often…enjoy yours…


  • Rick Dailey


    I purchased the G42 for concealed carry and love it! The one thing that I did discover on my first trip to the range is that the hollow point rounds hangup when chambering a round. All of the fmj rounds work just fine with no problems. All in all, this will stay on my belt for total concealment unless I go to a G43 when Texas goes open carry in January.


  • Jack


    I discovered you need a higher energy round. I used PMC (low energy rounds) the first time I shot it and had 5 consecutive stove pipes, + continuous FTF’s etc. After using a “death grip”, I had no failures. This gun is very sensitive to limp wristing. I’ve got an LCP, Shields in .40 and 9, and never had to put a grip on them like this one. Next I’ll try higher energy rounds (195 to 210).


    • OldGringo


      Yes, the gun is very sensitive to limp wristing. The Glock factory rep told me in person they had lots and lots of gun returned and all of them were people who could not hold the little grip frame well….I have had mine nearly 17 months and have never had a single failure and that includes several brands of that cheap steel case ammo….that said, the Glock 42 is one of the least accurate handguns that I own…I have been carrying Glocks in law enforcement and privately since 1991, and never had any problems at all….and I just bought the Glock 43, single stack 9mm….it shoots great, even better than the Glock 19…so my suggestion is if you can’t hold the little 380, then move up to the little Glock 43….If you have large hands, you just may not be able to shoot the little gun….FWIW..


  • Horacio Ortiz


    I’m 61 and live in Florida ,experienced shooter with almost guns you can get since my 16 years.
    That said,I use to carry a Glock 19 ,Beretta nano and now a Glock 42 depending the dress code of the occasion ,in Miami we use to dress very light so concealing a weapon some times is at least complicated.
    I’ve heard about the 42 6 months ago but waited until others use this gun.
    So couple of months ago I bought the 42 ,I fired a lot of ammo ,even that Mr. Campbell have mentioned here ,in around 500 hundred rounds I’ve had two failures of extraction same box of reloaded ammo with poor powder charge.No issues or malfunctions with the other ammo .
    Now I’m using the 42 for my EDC ,and because some times without holster I’ve changed the strike pin spring for one stronger provided by Wolf.
    I feel very confident with this tiny and reliable glock ,the caliber is not the best but believe me ,a couple of Corbon ,Hydra shock or Hornady bullets in the chest it’s not a joke.
    Hope this work for someone


  • John Hamilton


    I now carry the G42 since I am an advancing senior and don’t like a lot of recoil. Since I’ve had it, I installed an extended magazine release, a set of Dawson fiber optic sights, and + 2 magazine extenders. The extension fits my hand perfectly. This gun is a hog – eats and feeds anything I put in it, so far 200 + rounds as fast as I could fire, single or two handed. Carry round has been and will continue to be the Corbon DPX. So far, I haven’t seen any of the problems claimed for the initial release. Mine has a frame stamp of 2, made in June, so maybe the problems have been corrected. It’s no trouble to carry 3 spare mags giving me 32 + 1. Nice gun Gaston.


  • Littlebit


    I am a new gun owner and a new shooter. I chose the G42 because it is a smaller gun that fits my smaller hands. I don’t have alot of experience as I have only shot a gun 6 times ever…but have been to the range 4 times since purchasing my G42 and have had no problems. As a “beginner” I like that fact that it doesn’t have alot of kickback. I also find that I have no problems with the slide and have had no jams. I think that the G42 is an awesome gun and am looking forward to carry it for protection when I receive my CC license.


  • Phil


    Joe S. I see you cried fowl as to my comment that the Glock rep told me 99% of the problems that had had dealt with limp wristing. Please note that I bought my gun in April, at a military only event where a VP of Glock, several reps, and their spokesman R. Lee “Gunny” Ermy were present. I am a disabled/retired vet and had a chance to buy one on a military base at a 2 day event at which Glock was present. As an NRA certified handgun instructor, concealed instructor, and 4.5 decades in the military and law enforcement, I was just having shop-talk with the rep and just asked if they had experienced any issues. His comment was that 99% of the ones that had been sent back, all shot well at the factory and the guns seemed more prone to limp wristing. It was just a responsive comment. So, everytime I shoot mine, I hold with a death grip. It has run 100% with everthing I put in it. These little guns have a totally difference slide speed and return, somewhat like the little Taurus and Ruger guns, yet slower due to the longer slide length. I can make any semi auto you own by limp wristing….Send it back to Glock…..if they shoot it OK, then maybe you should buy something else? Not to be rude, but I see folks often complaining about jams and 99% (my number) of them either limp wrist or have dirty guns or occassionally reloads. Anyway, just clarifying where my comment came from.




      I agree with PhiL, I own and carry several different guns, but find myself carrying my Glock 43 the most, I guess because I trust it, it shoots straight , it’s reliable and super easy and comfortable to wear all day, I can shoot with both hands , but am a lefty at heart, all my Glocks work well for me as well as several other makes of guns that I own, for some one that just a few years ago wouldn’t own a Glock, I now have several and fine them all to be reliable and trust worthy, I have never had any, and I mean any problems with any of them, even though I like some of my other guns better…..during the cold Winter months I carry my G43 as a back up gun to one of my other 45’s 357, or 10mm,


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