Glock Barrel Twist Rate - Glock released the Gen 4 line of pistols in early 2010, which addressed some of the caliber's frame strength issues and brought some mild appearance changes. Nearly seven years later, we are introduced to the next generation of Glock. The Gen 5 differences are equally subtle on the surface, but there are some interesting changes that aren't immediately apparent.
I've been using my Gen 5 Glock 19 since late August and have put about 4,000 rounds through it since then. I've run it for static accuracy and concealment in dynamic defense drills with and without the light on the rail. I also spent time taking it apart, getting to know the internal changes, and parts replacement issues (because Glocks are fun hobby kits).
Glock Barrel Twist Rate
Basically, the Gen 5 Glock 19 is just a Glock 19, but there are some interesting and strange changes that warrant investigation. There are also some caveats that early buyers should be aware of. I hope to cover most of them here, but keep in mind that these insights come from less than 2 months of use, a few times a week. More time can tell more stories.
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Most of this review will cover the Gen 5's differences from previous versions and user issues specific to the Gen-5 (wearing, shooting, accessories, etc...). For a more basic review of the Glock 19, I recommend reading my Glock 19 Gen 4 review here ("Review: Glock 19 Gen 4 - After 80,000 Rounds").
It should also be noted that the photos in this article do not depict new factory guns. Rather, these are photos of the guns of someone who uses them heavily a few days a week. They tend to take a bit of a beating.
The first and best reason to consider this gun is that it's a Glock 19; arguably the best gun ever made. It is large enough to be a combat pistol and offers functional accuracy and considerable capacity while being small and light enough for daily concealed carrying.
In addition, the excellent reliability record of Glock pistols should not be overlooked. In my own experience, I've fired over 100,000 rounds from Gen 3 and Gen 4 Glock pistols, and the only failures I've ever experienced have been due to the failure of non-Glock replacement parts and the failure of Cerakote. With spare parts, a Glock pistol performs almost flawlessly, even under harsh conditions.
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Specifically for Gen 5, you may want to consider the new Glock 19 for several compelling reasons. First, the slide lock lever is now bi-directional. So if you are left handed, put the mag release to the right and you have a completely left handed gun. For those of you who like Glock pistols but don't like grip finger grooves, the Gen 5 comes with a flat browband on the grip. No customization required.
Gen 5 brings very little new to the recording experience, with 2 notable exceptions. The Glock 19 has always been a soft-shooting, easy-to-handle pistol and has always had an accuracy that will exceed 99.9% of the shooter's abilities. New in this experience is the new Gen 5 barrel and the smooth grip band on the front.
Having shot a lot with Gen 3 and 4 Glocks, I find the lack of finger grooves noticeable. I'm used to the grip squeezing to fill my strong hand, and now it feels different. I don't mind the difference but because the finger grooves fit my hand perfectly and I miss them on this gun. I know a lot of people never liked them, so many will be happy with this change.
Glock 19 Gen 5 after a muddy workout with "injured arm". It fell to the ground dozens of times.
A Legend Is Back
Glock claims the barrel's new rifling profile is twice as accurate at longer ranges (4-inch groups at 50 yards). I'm still not good enough to get 4 inch groups at 50 yards, but I noticed my groups at 25 yards were noticeably smaller with the Gen 5 compared to my Gen 4 shots. I can't say for sure, but I assume it's due to a more accurate barrel.
The Gen 5 trigger probably feels a bit better than the Gen 4, but that's subjective and hard for me to say. The Gen 5 trigger assembly is completely different from the Gen 4, which is configured like the Glock 43. It has a New York trigger spring that uses a polymer strut and a compression spring (instead of an expansion spring that attaches the rod to the crossbar. ) I tried a 3.5lb connector and felt no compression weight difference at all. So I tried a 2lb connector and got the 4.5lb press I expect in my rifles. It is interesting.
Most of the 9mm ammo I put through the gun is a 115 gram ball, but I have 147 gram Federal Premium Hydra-Shok JHP, Speer Gold Dot 124 gram + P GDHP, Federal Premium 124 gram HST JHP from the Hornady range. Critical Defense 115gr and Hornady Critical Duty 135gr...all executed perfectly.
I haven't experienced one in 4,000 rounds of my Gen 5 Glock 19. The only notable issue I can report is that during the first 1,000 rounds I felt a little shaky at times when the action applied to the first round of the magazine. Instead of the standard "chunk" sound/feel of the slide going into the battery, there was the occasional "ka-chunk" that seemed to hesitate a bit with the round chamber. This anomaly disappeared after about 1000 rounds and never affected the weapon's performance. Each round was chambered and fired.
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As with any other Glock pistol, the transition from the trigger guard to the grip on the Gen 5 G19 is quite angular and usually uncomfortable for a tight middle finger when firing. That's why I suggest that EVERY Glock gun should have a Dremmel tool that is moved with the handle to the side and below the trigger guard joint to create a smooth rounded and reduced profile there. Aside from this issue, the Glock 19 is quite comfortable. Some disagree and feel that the G19 or any other Glock pistol works fine without this minor change. With this adjustment, I find the Gen 5 Glock 19 very comfortable. Without it, useless. Personally, I would never own a Glock that wasn't set up this way. There will definitely be a nice update to Gen 6.
The Glock 19 is by no means tacky and recoil is very easy to manage. The magazine release location is good and I only need to adjust my grip a bit to accommodate my average size hands (as I do with any premade gun). Even with the Glock's minimalist slide-lock lever, my grip often gets in the way of the lever, and I occasionally find that the gun fails to lock on the last round of the magazine. This is in no way the weapon's fault. I am it all.
Although compact, the Glock 19 is larger than some in its class. However, with a good and well-made holster, it can easily be hidden in several positions on your belt, inside or outside the waistband. I wear a Glock 19 every day with the light in the clip position and never have a problem with printing.
Note, however, that stealth is controlled significantly by the shell and its configuration. Most concealed carry holsters are poorly made, not configured at the correct angle to the gun for concealment. Be careful!
The Guardian Barrel For The Glock
The fifteen plus one capacity of the Glock 19 is plenty, especially for a compact model. It's no mistake that the Glock 19 sets the standard for size-to-power ratio in the pistol world.
The largely undecorated slide of the Gen 5 Glock 19 comes with a black Melonite finish that is then treated with an nDLC coating. The result is darker and reportedly more durable. I really like this new finish and the aesthetic it brings. Can't say if it is more durable. However, I can say that repeatedly dropping it on gravel during practice will scratch and fray the finish spots, as seen here;
The scratches shown above are from several dozen iterations of the "wounded arm" shown here:
The polymer frame is very similar to the Gen 4, except the grip is angled slightly on the sides to mimic a magwell (it's just an imitation), and the toe grooves on the front strap are gone. The Gen 5 also only has one pin at the lock block instead of the usual 2 pins of recent generations. Probably because of this change, the frame is slightly wider and slightly higher than the Gen 4 frame. The grip texture is identical to that of the Gen 4 and is usable if you don't have wet or bloody hands (so make sure to squeeze your Glock if it's a carry pistol).
Standard Barrel For Glock 19
IF YOU WEAR A GLOCK 19 WITH LIGHT,
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