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6 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.

All Tested Glock Triggers
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.

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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.

Readers' Ratings

4.97/5 (709)

Your Rating?

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 let 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.

134
at OpticsPlanet

Prices accurate at time of writing

Prices accurate at time of writing

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.

165
at KKM Precision

Prices accurate at time of writing

Prices accurate at time of writing

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 a 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.

Most Corrosion Resistant/Best Suppressed
236
at Brownells

Prices accurate at time of writing

Prices accurate at time of writing

Most Corrosion Resistant/Best Suppressed

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.

Conclusion

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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41 Leave a Reply

  • Commenter Avatar
    Ben

    There are plenty of barrel manufacturers, what is the criteria used to base your high opinion on these? testing?

    December 17, 2021 7:11 am
  • Commenter Avatar
    Jonathan

    I have a threaded Faxon barrel for my G43X. 20% to 30% failure to feeds. Had ramp polished out to a mirror. Still happens. Most disappointing $210 I have ever spent. Going back to stock barrel for carry. I won't even try to sell this piece of garbage to someone to recoup some loses, wouldn't be ethical.

    August 29, 2021 9:40 am
    • Commenter Avatar
      Craig

      I bought 3 Faxon barrels and they are all shit. My 10.5" AR barrel would unlock too soon and get weird pressure problems. My two Glock 19 barrels have chambers that are too tight and cause jams. Don't waste your money on Faxon, their barrels are shit.

      October 25, 2021 11:11 pm
  • Commenter Avatar
    Stan

    What about “Agency Arms” barrels ? Reviewers like “Tactical Toolbox” and a lot of other reviewers swear by them and don’t trust anything else. Why wasn’t Agency Arms barrels on your list ?

    July 16, 2021 6:21 pm
    • Commenter Avatar
      Doc Holliday

      I reviewed this site...and went straight back to Agency. Threaded mid-line match grade drop in for P80 G17 Gen3. Some of the best on the market. No idea why they left them out. Especially considering the fact that many of the barrels Included in the list are either unreliable, impossible to obtain due to stock issues and/or over priced.

      January 21, 2022 12:14 am
  • Commenter Avatar
    Sigfried Von Glockenspiel

    RE: KKM and button rifling - I'm a fan of KKM but button rifling is neither more (inherently) accurate than cut rifling, nor is it a KKM exclusive. In fact, I'd love to know who is producing cut rifled barrels for Glocks, as most aftermarket manufacturers are button rifling.

    You can produce an incredibly accurate barrel using either method, you can also produce an inaccurate barrel using either method. It's not the rifling method that determines an accurate barrel, but the manufacturer's total process. Manufacturing a button rifled barrel is faster and less complex than manufacturing a single-point cut-rifled barrel, that's it's main advantage. Cut rifling can produce a smoother finish (cutting versus tearing) which equates to less copper fouling (and less barrel break-in needed on precision rifles). Cut rifled barrels also tend to have a lower transition period from good to worn out, whereas button rifled barrels tend to degrade more abruptly when they start to open up.

    And if anyone's interested, there are at least three other methods of rifling: Broached, Hammer Forged, and ECM.

    May 23, 2021 10:01 pm
    • Commenter Avatar
      Kendall

      Hello,

      I am interested in aftermarket hammer forged and ECM barrels compatible with the Glock 19 gen 3,4. Do you know of any company who make them?

      January 7, 2022 6:34 am
  • Commenter Avatar
    Patrick Rutherford

    Hi there. My name is Patrick Rutherford. I’m looking for a lead Bullet barrel in the $100 price range. I have a Gen 1 glock 17. I don’t need irridescent colors. . Just a simple barrel

    November 14, 2020 10:17 am
  • Commenter Avatar
    David Petroski

    Do you have any knowledge of the Glock Store Double Diamond barrels? I am looking for a barrel for a glock 20.

    May 11, 2020 1:37 pm
    • Commenter Avatar
      hardy

      My experience with Double Diamond Barrels is they dont fit some Slides out of the box.

      August 31, 2020 5:20 pm
  • Commenter Avatar
    WALTER NIKLOWICZ

    I JUST SENT BACK A KILLER INNOVATIONS BARREL THE CHAMBER WASN'T POLISHED YOU COULD SEE RINGS FROM THE CUTTING TOOL PLUS THERE WAS A BLUE RING AT THE TOP OF THE CHAMBER FROM GETTING TOO HOT IN THE CUTTING PROCESS.THEY SAID THE RINGS WERE NORMAL AND BECAUSE THEY PLUG THE CHAMBER FOR THE COATING PROCESS WAS THE REASON FOR THE BLUE RING. IWHENRUNNING A THIN WIRE OVER THE RINGS IN THE CHAMBER COULD FEEL THE RIDGES THATS WHY I SENT IT BACK.

    March 17, 2020 10:26 am
    • Commenter Avatar
      Sarge

      Capslock!

      March 31, 2020 4:06 pm
  • Commenter Avatar
    Wilbur

    Why wasn't the double diamond barrel from the glock store mention in the review of after market barrels for the glock.

    January 11, 2020 12:26 pm
    • Commenter Avatar
      hardy

      My experience with Double Diamond Barrels is they dont fit some Slides out of the box.
      I got a Stainless 9mm for my G-17 and it wouldnt fit. I had to do some filing to get it right. A lot of filing and fitting. I was taking a risk because it voided the warranty I'm sure. I had waited the better part of a month so I had at it. Other Barrels have not had this problem at all.

      August 31, 2020 5:17 pm
  • Commenter Avatar
    Steve Eisenberg

    I'm going to use a "killer" barrel with "R.I.P." ammunition. I'm sure no prosecutor would ever try to use it against me.

    December 23, 2019 10:23 am
    • Commenter Avatar
      Mike

      Who cares if they did. You would never get convicted! Don't be so dumb!

      May 10, 2020 8:18 pm
  • Commenter Avatar
    Otto scherr

    I’m looking for a threaded barrel from gen 4 10 mm glock

    November 7, 2019 1:28 pm
  • Commenter Avatar
    Jeffrey Williams

    Okay,
    1. I Shoot a Zev and Wheaton on my 17. A L2D on my 19. All 3 shoot great, don't jam Etc. I shoot a KKM on my 40 Cal Glock. Aftermarket barrels give me more consistency for some reason. 2. Moving to a 147 grain 9mm round tightened up my groups. " Winchester Train and Defend"
    3. Corrected my "Left" & " Little Low" by sliding my grip clockwise. This lead to my trigger finger pulling straight back.

    September 4, 2019 1:40 pm
  • Commenter Avatar
    KkmCrackSmoker

    I bought a KKM barrel, put Coreboy in the front of it, and smoked crack out of it, and it still shot great!

    July 28, 2019 6:42 am
    • Commenter Avatar
      SnarlzBarkley

      Good to know. I plan on using my Glock to shotgun [see: the movie Platoon] every substance I can find. These are the reviews that matter. Than you for doing the Lord's work.

      January 23, 2020 3:36 pm
      • Commenter Avatar
        ThorholosunofOdin

        I'm glad I'm not the only one that enjoys the finer things in life. Hopefully I'll be drinking Claws through my Glock within a week.

        January 31, 2020 7:37 am
  • Commenter Avatar
    zorba

    Another good Glock or Polymer 80 barrel is from Heavy Armor Division. They'll even engrave your bbl for FREE! No relationship with them other than as a satisfied customer.

    March 20, 2019 11:59 pm
  • Commenter Avatar
    Woody Rosenscein

    Any feed back on Bear Creak Arsenal? $50 barrels. I saw some videos that it provides OEM accuracy. A threaded barrel for $50 is a great price if it lasts and provides good accuracy.

    January 18, 2019 7:52 am
    • Commenter Avatar
      Kenneth H

      After my experience with a .458 Socom BCA complete upper, I'd steer clear of them. They seem to have a lot of QC issues. Thankfully they were easy to work with on the return and refund.

      March 3, 2019 2:44 am
  • Commenter Avatar
    .BRIDGER

    I'BE HAD 2 KKM BARRELS ON A GLOCK 26 , and both shot high . After that I put the factory barrel back in , and was hitting point of aim . Could you please tell me what was going on there ?

    September 13, 2018 2:51 pm
    • Commenter Avatar
      David L

      That would be something you'd have to talk to KKM about, sorry.

      September 13, 2018 3:00 pm
  • Commenter Avatar
    Mike

    You forgot to mention Bar-sto barrels

    June 15, 2018 7:22 am
  • Commenter Avatar
    Derek D Jones

    As I have been looking a caliber conversations, no one comes right out and admits that the bolt face on the slide has to match the case? I'm sure a ,357 sig. will work in a 40 S&W slide, but there isn't any way to use 9 mm in say a Glock 22 or 23? Am I correct or not?

    May 27, 2018 6:13 pm
    • Commenter Avatar
      Revolverdude

      You can buy a 9mm conversion barrel for a Glock 22 or 23. You can go down in caliber but not up.

      August 10, 2018 3:57 pm
      • Commenter Avatar
        Gun_Writer

        @Revolverdude : "You can buy a 9mm conversion barrel for a Glock 22 or 23. You can go down in caliber but not up."

        Not necessarily. The only conversion Glock recommends is .357 SIG and .40 S&W. As for the G22/23 conversion of G17/G19... The G22 was originally built on the G17 frame, and with the higher pressures of the .40, they were taking a battering, which lead to some pre-mature wear issues. With the Gen4, the G17 was built on the G22 frame, so stepping down from a .40 to a 9mm would be safe (though not recommended), HOWEVER, you could see some reliability issues if you try to do this with a pre-Gen4 gun. The extractor on a pre-Gen4 G22 isn't long enough to reliably grab the case of the 9mm. The Gen4 extractor is overbuilt, so it grabs the .40 case more aggressively, which means it will still reliably (more or less) grade a 9mm case. (NOTE: As of the date on this post, Glock goes not have a .40 Gen5, and most likely won't, so it's not applicable to Gen5).

        February 28, 2019 4:51 pm
        • Commenter Avatar
          joao

          A glock desenvolveu sim a g22 gen 5 para a polícia militar de sao paulo/brazil

          April 5, 2019 9:31 am
  • Commenter Avatar
    Mike

    The article about KKM barrels being less reliable than the OEM barrel is total BS. I put a KKM barrel in a new unfired G20 for using Buffalo Bore hard cast ammo for hiking. I bought a 500 round case of Remington range ammo to break the pistol in before carrying it. 500 rounds without a single failure to feed, fire or extract.

    May 21, 2018 5:50 am
    • Commenter Avatar
      Bob Hope

      “Failure to feed, fire, or extract.”
      None of which are barrel related. Cool story.

      December 28, 2019 2:45 pm
      • Commenter Avatar
        Bob Malvin

        Failure to feed with a bad ramp certainly is affected by Barrel. Had to send back a KKM to have the ramp remilled.

        September 28, 2021 12:53 pm
    • Commenter Avatar
      Bob Malvin

      Not my experience. My KKM barrel would not feed BB 70% of the time. Sent it back and now it does fine.

      September 28, 2021 12:52 pm
  • Commenter Avatar
    Ari

    I have a Barsto .40- 9mm drop in conversion for my G23C. Since I primarily shoot crap reloads I don't notice much difference BUT they are the only company that offers a barrel with porting in the factory location, For my G27 I have KKM .40-9mm drop in and don't notice much there either.

    March 16, 2018 9:28 pm
  • Commenter Avatar
    thechad

    I like a lot of what ZEV is putting out....but they do not put out anything for the Glock 23.

    March 7, 2018 2:41 pm
    • Commenter Avatar
      Mel

      Good evening. As of right now. I bought a black list barrel for my g23. Because I will be carrying a buffalo bore 40+p for self defense. cannot do it with oem barrels. alpha wolf g23 barrels are hit and miss. My friends alpha wolf needs the feed ramp polished. It cannot feed hp and had ftf.

      April 13, 2018 7:32 pm
    • Commenter Avatar
      Copper8377@yahoo.com

      That’s the problem their barrels are top notch and they make nothing for the .40 this just blows my mind !

      April 15, 2018 7:51 pm
  • Commenter Avatar
    Kopfjager

    Good, solid information regarding a trusted "go-to" pistol. I note that you don't have space to address every aftermarket barrel available, but Storm Lake didn't make the shortlist. Any opinions? I placed one of SL's barrels 5.30" w/ ports in a G-21 just the other day. I found it to be as close to "airtight" as a drop-in could be without smithing my gun. Good looks, good price. Haven't shot it as of yet, but it seems to be a good choice. Will I be wishing I went with KMM or Zev?

    January 4, 2018 12:13 pm
    • Commenter Avatar
      Kopfjager

      I also put money into the SL 5.3 w/porting on my Glock 21. Even though Iv trusted Zev with many parts for several firearms, I'm very happy with the results found in Storm Lake. All fit, function and looks pleased me so much it gave me the desire to continue improving on this 21 and Ill say that I'm again enjoying shooting it once again.

      March 17, 2018 5:02 am
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