7 Best Aftermarket Glock Barrels [Hands-On]


A Glock is simply one of the most balanced pistols out there.  

You know exactly what you’re getting when you purchase one — a dependable weapon that’s easy to shoot with a familiar boxy, plastic feel.

A Couple of Glocks

Yes, Glocks attract almost as many haters as they do diehard followers. But they’re good guns…especially if you’re a noob looking to get comfortable shooting. Not to mention, Glocks are highly customizable thanks to a robust aftermarket.

One of the easiest upgrades to start with is the barrel.

TiN and Chamelon Faxon Barrels
TiN and Chamelon Faxon Barrels

So, today we’ll walk through why you might want to swap out your stock Glock barrel for something a little flashier and run through some of our favorite Glock barrels.

By the end, you’ll know what companies to head to if you want to add a little more pizazz to your Glock pistol.

Summary of Our Top Picks

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Why Get a Replacement Barrel?

Since Glocks are known for their unparalleled quality, the idea of spending money on an aftermarket barrel might seem strange.

More often than not, people interested in replacement barrels for their Glock want competition-grade barrels that can help increase accuracy when squeezing off rounds.  

Glock 19 with Faxon TiN Threaded Barrel
Glock 19 with Faxon TiN Threaded Barrel

Many competitive shooters swear by these match-grade aftermarket Glock barrels when using premium ammunition.

Another reason why some people opt for an aftermarket barrel is barrel threading for compensators or suppressors.

Best 9mm and Multi-Caliber Pistol Suppressors
If you want one of these, you need a threaded barrel.

With that said, let’s take a look at some popular aftermarket barrels…

Best Aftermarket Glock Barrels

1. Faxon

Faxon’s AR-15 barrelshandguards, and bolt carrier groups have been impressing us for a while.

And their Glock barrels are no exception.

Chameleon Faxon Barrel
Look at that!

Their accurate and offer multiple coatings so you can get the look you want.

In short, we highly recommend them.

Suppressed Glock 19 with Faxon Barrel and Banish 45
Suppressed Glock 19 with Faxon Barrel and Banish 45

See it in action here:

To read more on our experiences with Faxon’s Glock barrels, check out our full review.

2. Grey Ghost Precision

Grey Ghost Precision is another company that is well-known for its awesome aftermarket goods.

We’ve tested out a few of their products, a Glock barrel included, and really liked what Grey Ghost offered.

Bottom line…the barrel we tried was awesome. 

Grey Ghost Precision G19 V2 and G17 Type V1
Grey Ghost Precision G19 V2 and G17 Type V1

One of the best things about Grey Ghost is the number of options. Whether you want a threaded or non-threaded model or want to upgrade your slide as well…you can probably find what you’re looking for. Grey Ghost has options for both the Glock G19 and G17 too!

Make sure to dive further into their offerings in our full review of a GGP slide and barrel combo.

What do you think of Grey Ghost Precision barrels? Rate them below.

3. Lone Wolf

Lone Wolf has earned the reputation of being one of the leading manufacturer of aftermarket Glock accessories in the industry.

You want to completely rebuild your Glock? Yeah, they can help with that.

Glock 19 Gen 5, Stock
Tired of this? Yeah, they can help you jazz it up.

While it should come as no surprise that Lone Wolf makes their own Glock barrels as well, you might be interested to know that they don’t just produce OEM replicas.

They also make completely unique barrels that stand out from their factory counterparts.

Lone Wolf’s line of Alpha Wolf barrels lets the shooter have more control over their gun’s operation.  

Chameleon colored barrel by Lone Wolf
Chameleon colored barrel by Lone Wolf

One of the chief differences between Alpha Wolf and Glock OEM barrels is the option of barrel threading, which is something that Glock simply doesn’t do.  

And if you’re planning on mounting a suppressor, you need a threaded barrel.

Silencer Center Banish 45
Silencer Center Banish 45 suppressor

Lone Wolf’s barrels also ditch the hex/polygonal rifling for traditional rifling.  

Lone Wolf also has a number of barrels that convert various Glock models from one caliber to another.  

These make it easy to turn your Glock G35 from a .40 S&W chambering into a 9mm or .357 Sig.

4. KKM Precision

KKM is one of the leading manufacturers of match-grade drop-in Glock barrels.  

Designed for competition shooting, KKM’s barrels are a popular choice for Glock owners looking to gain a competitive edge with their accuracy.  

Additionally, KKM barrels are also great for shooting non-jacketed bullets as well — perfect for anyone who has a surplus of lead ammo they’d like to get rid of.

“The Roland Special Barrel” for the Glock 19
“The Roland Special Barrel” for the Glock 19

You’ll find that a large portion of the Glock owners shooting with KKM barrels belong to 3-Gun crowds.  

This is because KKM barrels are known to improve accuracy thanks to their button rifling which irons the rifling pattern into the barrel rather than cuts it.  

That, and the fact that KKM barrels increase tightness in the chamber is said to give competitive shooters a slight advantage over OEM barrels.

Threaded Glock 17 Match Barrel
Threaded Glock 17 Match Barrel

While the KKM barrels might be overkill for a standard home defense setup, if you’re trying to improve your accuracy in a competitive setting using high-quality loads, KKM can do wonders for your grouping.

5. Zev Technologies

If you know a thing or two about modding Glocks, chances are you’re already familiar with Zev.

This company makes some of the coolest slides and most responsive triggers for Glock models.   

Zev Barrels
Zev Barrels Are Known for Their Flashy Appearances

Zev barrels don’t just come in pretty colors…they’re also made with match-grade steel that’s resilient and withstands excessive pressure from shooting with a suppressor.  

Many also come with the option of threading as well, making it simple to mount a suppressor if you’ve got one.

The durability that comes with the pre-hardened stainless steel barrel offers improved resistance against friction and corrosion.  

And as an added bonus, all of Zev’s barrels are drop-in barrels, so you don’t need any gunsmithing expertise when swapping out your OEM barrel.

6. Killer Innovations

Looking for a precise barrel? Well, Killer Innovations looks to offer just that.

Killer Innovations Glock Barrel
Killer Innovations Glock Barrel

Killer Innovations claim to fame is their single point cutting system for their rifling which is more precise.

We ran in through a couple builds and also shot different types of ammo at 10-yards.

Killer Innovations Tested Ammo
Killer Innovations Tested Ammo

Its results were good for the compact G19 barrel and frame!

Killer Innovations G19 Barrel Test
Killer Innovations G19 Barrel Test

Check it out if you like a different pattern of the exposed barrel…and if you value accuracy above all.

7. Tyrant Designs Glock Barrel

Tyrant makes a whole bunch of Glock accessories and recently added barrels to the lineup. Suitable for the G19, G19X, and G45, they come in black or gold and are for Gens 3-5.

Threaded options come with a thread protector

These barrels feature symmetric fluting for heat dissipation as well as deep crowning for increased bullet stability. Threaded options come with a 1/2-28 thread pitch pattern to fit most suppressor options.

Black or gold

Tyrant included a 1 in 10 twist rate for the barrels as well. Forged from 416R stainless steel, they are then coated with gold TinNitride or a black DLC finish.

Final Thoughts

Glock markets itself as perfection straight out of the box. But that doesn’t mean that you can’t take an already decent design and tweak it to suit your sensibilities!

Brownells Windowed Glock Slide with Faxon TiN Barrel
Brownells Windowed Glock Slide with Faxon TiN Barrel

Switching out the barrel is just one of many things you can do to make your Glock truly one of a kind.

G19 with Banish 45
G19 with Banish 45

What’s your favorite Glock barrel? Let us know in the comments below. Pair up your new barrel with one of our favs in Best Glock Slides. Or if you want to swap out even more stuff…check out our Best Glock Upgrades.



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