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7 Best Aftermarket Glock Barrels [Hands-On]

Building or upgrading your Glock? The barrel is one of the most important parts that will dictate your accuracy. We cover our favorites so you can make the best decision.

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Hunter & recreational shooter. Firearms collector of 10+ years. Skeet shooter

Updated Aug 14, 2024
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Despite a growing number of excellent pistols available to shooters today, Glocks still remain some of the most popular pistols on the market.  

You know exactly what you’re getting when you purchase one --- a dependable weapon that’s easy to shoot.

TiN and Chamelon Faxon Barrels
TiN and Chameleon Faxon Barrels

But shooting characteristics aside, many people enjoy Glocks for their extremely large aftermarket. They are highly customizable in every aspect, including the topic of today's article --- barrels.

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 aftermarket Glock barrels.

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

How We Chose the Best Aftermarket Glock Barrels

This article is an analysis based on our experience with hundreds of aftermarket products and tens of thousands of rounds over the years at Pew Pew Tactical.

Each barrel manufacturer on the list was selected based on a combination of hands-on testing, features, availability, precision, and overall value. Most barrels have had at least 500 rounds through them and, in some cases, the barrels listed have seen 1,500+ rounds through them.

Our team comprises former military and law enforcement, competition shooters, and handgun instructors with lots of time behind the gun.

Best Aftermarket Glock Barrels

1. Faxon - Editor's Pick

Editor's Pick
Faxon Glock Barrels

Faxon's has impressed us with many of their AR-15 barrelshandguards, and bolt carrier groups, and their Glock barrels are no exception.

Chameleon Faxon Barrel
Look at that!

They have been accurate, and they also offer multiple coatings and configurations so you can get the look you want.

We have tried both their standard models as well as their threaded models for suppressor usage. You can see one of their threaded TiN barrels with a suppressor in action below.

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

2. Grey Ghost Precision - Best Bang for Your Buck

Best Bang for Your Buck
Grey Ghost Precision Glock Barrels

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

We've tested out a few of their products, including a Glock barrel, and really liked what they had to offer. 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

Whether you want a threaded or non-threaded model or want to upgrade your slide, you can probably find what you're looking for. Grey Ghost has options for both the Glock 19, 17, and the 43 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.

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3. Lone Wolf - Best Conversion Options

Best Conversion Options
Lone Wolf Glock Barrels

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

Do 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.

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

 

Lone Wolf’s barrels ditch polygonal rifling in favor of traditional lands-and-grooves rifling. They also offer a number of barrels that convert various Glock models from one caliber to another.  

In addition to various threading, fluting, and color patterns, Lone Wolf also produces barrels for nearly every Glock model, including 10mm, .45 ACP, .40 S&W, and .357 Sig models.

4. KKM Precision - Best Precision Barrel

Best Precision Barrel
KKM Precision Glock Barrels
KKM Precision Glock Barrels
$225
at KKM Precision
Prices accurate at time of writing

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 increased 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 - Most Versatile

Most Versatile
Zev Technologies Glock Barrel

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 Glocks.   

But their 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.  

Zev Barrels
Zev Barrels Are Known for Their Flashy Appearances

Features like the unique dimple fluting, recessed target crown, and proprietary broach-cut rifling help make these some of the nicer barrels on the market.

6. Killer Innovations - Best High-End

Best High-End
Killer Innovations Glock Barrel

Looking for a precise barrel? Well, Killer Innovations offers 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 supposed to produce more accurate and consistent rifling.

We ran in through a couple of builds and also shot different types of ammo at 10 yards. The results were excellent with the compact G19 barrel and frame! See for yourself below!

Killer Innovations G19 Barrel Test
Killer Innovations G19 Barrel Test

7. Tyrant Designs Glock Barrel - Best Threaded Option

Best Threaded Option
Tyrant Designs Glock Barrel

Tyrant makes a whole bunch of Glock accessories, including some excellent barrels. They only make Glock 19-length barrels for generations 3-5, but they have some neat features.

These barrels feature symmetric fluting for heat dissipation as well as deep crowning for increased bullet stability. Threaded options use the standard 1/2-28 thread pitch pattern for common muzzle devices and suppressors.

Threaded options come with a thread protector

Tyrant included a 1 in 10 twist rate for the barrels as well. They are forged from 416R stainless steel, and offered in either a gold titanium nitride or a black DLC finish.

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.  

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...

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.

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. If you want to swap out even more stuff, check out our Best Glock Upgrades.

Brandon Harville

Written By

Brandon has spent the majority of his life hunting in the woods in Georgia and Alabama. Shotguns, rifles, pistols...he's been collecting them all for over a decade. He can tell you everything you ever wanted to know about hunting and recreational shooting. Skeet shooting and duck hunting are his all-time favorite hobbies, but he's more than ready to talk your ear off about collecting and sport shooting as well.

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