Best Glock Barrel for Making Your Glock More Accurate (than It Already Is)

Last Updated on October 26, 2020.

OEM Glock barrels are good barrels. But upgrading your Glock barrel can get more organic accuracy from your pistol.

Obviously, your shooting skill is the most important part. Make sure you train. Enough said.

There’s no harm in making your equipment more capable, though.

  • Improved precision over the OEM barrel.
  • Will last as long—if not longer—than your stock barrel.
  • Crowned to protect the rifling and improve consistency.

SPOILER—if you want a simple, straightforward barrel upgrade for your Glock, get the Victory First Brownells Edition Glock Barrel. It’s a drop-in barrel (no fitting needed), that will give your gun a decent precision boost.

If you’re looking for something specific, we’ve got you covered. We’ll talk about all the best Glock barrels, so you can get the best barrel for your situation.  

The Best Glock Barrel Reviews: Tightening Your Groups

Our best Glock barrel is up for review first. The rest of the barrels will be presented in order of price. The least expensive barrels are first in line. The most expensive barrels are near the bottom.

Let’s check the groups.

1. Victory First Brownells Edition Glock Barrel - Overall Best Glock Barrel

Glock OEM barrels use something called “polygonal rifling.” This sort of rifling gets the best muzzle velocity from your ammunition. However, polygonal rifling isn’t quite as precise as land-and-groove rifling. And it’s not great if you shoot cast lead bullets.

The Victory First Brownells Edition Glock Barrel uses traditional rifling to tighten the organic precision of your pistol and give you better performance with cheap ammunition.

The downside is that you’ll get slightly lower muzzle velocities than with your OEM barrel. But the difference is small. And you’ll get good terminal ballistics with defensive ammunition.

This model is machined from 416R stainless steel and finished with a matte black nitride finish. So this barrel is just as durable—if not more durable—than the OEM barrel, both inside and out.

Additionally, the barrel is crowned to protect the rifling and deliver more consistent shot groups. This is the same as the Glock Gen 5 OEM barrels. But it’s an improvement if you’re upgrading from a Gen 4 barrel.

Speaking of the Gen 5 barrels, this barrel comes in a Gen 5 variant as well. So you can use this barrel in almost any Glock handgun.

Overall, this barrel isn’t flashy. But if you want an affordable upgrade for your Glock that won’t disturb the standard aesthetics, this is the way to go.


  • Improved precision over the OEM barrel.
  • Will last as long—if not longer—than your stock barrel.
  • Crowned to protect the rifling and improve consistency.
  • Retains stock aesthetic.


  • Delivers slightly lower muzzle velocity than the OEM barrel.

These barrels serve a very specific purpose: converting .40 S&W and .357 Sig Glocks to 9mm. You can use the Lone Wolf Distributors Alpha Wolf Conversion Barrel for Glock to save money on training or to convert a used Glock over to 9mm.

Whatever you use it for, this barrel is machined from 416 heat treated stainless steel. This barrel is heat treated to exceptional hardness levels for a long life span.

The bore is button rifled and three-stage honed to achieve exceptional bore smoothness and corrosion resistance. The button rifling also handles cast lead bullets better than the polygonal rifling of an OEM barrel. That way you can use any ammunition you want.

This barrel also has fluting to improve heat dissipation and rigidity for better performance in any type of intensive shooting. The fluting also gives more room to clear any debris. So, you’ll get OEM-level reliability from this barrel.

The exterior of this barrel is finished with a salt bath nitride finish, which is similar to the Glock OEM coating. It’s a very hard finish. However, it wears slightly faster than the OEM coating.

The only other trouble with this barrel is that you may need to replace your recoil spring with a recoil spring from a 9mm Glock to ensure reliable function. Otherwise the slide may run a bit too fast, which can cause stovepipes.

Even so, this is an excellent barrel for those who want to shoot 9mm from their .40 S&W or .357 Glock.


  • Construction is exceptionally hard and durable.
  • Three-stage button rifled bore offers excellent precision and corrosion resistance.
  • Fluted to improve cooling and heat resistance.
  • External finish is comparable to Glock OEM finish.


  • Black finish wears fairly quickly.
  • May require a recoil spring from a 9mm Glock for reliable operation.

The Faxon Firearms Compact Match Flame Barrel definitely looks cooler than the OEM barrel. However, the design elements also offer performance improvements.

First, the fluting helps make the barrel more rigid. That means better precision and more consistent groups.

The fluting also helps the barrel cool faster. So it retains its precision through longer, more intense shooting sessions—like competition and tactical training—and resists heat warping. This is great for competition and tactical shooters who need their gun to retain its performance through heavy use.

This barrel is also built with slightly tighter tolerances than the OEM barrel. It locks more precisely into the breach face for even more precision. However, it doesn’t require any gunsmithing or fitment. It’s still a drop-in barrel.

But the tighter fit means that you might need to clean your gun more regularly to maintain the reliability

If you already clean your gun a lot, it probably won’t be an issue.

As expected, this barrel is machined from 416R stainless steel and finished with black nitride for exceptional lifespan and corrosion resistance.

For those with a full-size Glocks, you can get this barrel for your Glock 17 as well.

But this barrel is surprisingly affordable for a fluted barrel. And it’s an excellent option for competitors and other professional shooters who want to add some toughness and precision to their handgun.


  • Fluting improves precision and heat dissipation.
  • Precise breach fit for increased precision over OEM barrel.
  • Just as durable and corrosion resistant as the OEM barrel.
  • Remarkably affordable for a fluted barrel.


  • Tighter tolerances mean that you may have to clean your gun a bit more often

4. SilencerCo Threaded Barrel for Glock - Threaded Glock Barrel

You need a threaded barrel if you’re going to run a suppressor. The threading also adds a bit of length to your barrel. It’s not much. But it’s better than nothing.

The SilencerCo Threaded Barrel for Glock is one of the best threaded barrels for Glock, especially when you consider the price.

Obviously, the big deal about this barrel is the threading. It’s fitted with standard ½ x 28 threads that fit the majority of suppressors. And it comes with a thread protector to keep your threads in shape when you’re shooting unsuppressed.

This barrel is constructed from 416R steel. And it comes in black nitride and stainless steel finishes. So the durability is just as good as an OEM barrel. Also, you get a couple options for the aesthetics of your Glock.

SilencerCo also makes these barrels for every Glock model. So, you can get a threaded barrel, no matter which Glock you shoot.

In terms of fit, this barrel fits almost exactly the same as the OEM barrelYou won’t have to worry about fitting, reliability, or changing up your cleaning routine.

Overall, this barrel is the best option for those who want to add a threaded barrel to their Glock without any worries about altering the performance too much.


  • Adds standard threading to your barrel.
  • Just as durable as the OEM barrel.
  • Comes in black or stainless steel.
  • Fits the same as an OEM barrel to retain reliability.


  • Black nitride coating wears faster than the Glock OEM coating.

5. Agency Arms LLC Non-Threaded Gen 5 G19 Barrel - Stainless Steel Glock Barrel

A stainless steel barrel is one of the most common Glock upgrades. The Agency Arms LLC Non-Threaded Gen 5 G19 Barrel is one of the best options if you want a quick, drop-in performance upgrade for your Glock.

Yes, this barrel is constructed from 416R stainless steel, as advertised. But there are a few extras, too.

First, this barrel has subtle fluting. The fluting improves heat dissipation and rigidity. So, this barrel offers more consistent precision than the OEM barrel. And this model retains its precision through heavy shooting sessions like tactical training and competition.

Additionally, this barrel is equipped with a deep barrel crown that ensures consistent trajectory from the muzzle and protects the rifling. It’s the same as the Gen 5 Glock Marksman barrel. But, if you have a Gen 4 barrel, the barrel crown is an upgrade.

Speaking of rifling, the rifling is cut using a pulled-broach method, which improves surface corrosion and wear resistance for a longer lasting barrel.

The only complaint about this Agency Arms LLC barrel is that the black nitride finish is more of a dark gray finish. If you want to retain the stock aesthetics of your Glock, this barrel may not be the best option for you.

It’s also available for those of you with Gen 4 Glocks:

Agency Arms LLC Non-Threaded Mid Line Barrel G19 Black Nitride

Agency Arms LLC Non-Threaded Mid Line Barrel G19 Stainless Steel

If you want a no-nonsense stainless steel barrel for your Glock that features outstanding materials and precision construction, this is the one to get.


  • Stainless steel construction for excellent service life and precision.
  • Fluted for better cooling and rigidity.
  • Deep barrel crown for consistent trajectory and rifling protection.
  • Pull-broach rifling improves surface corrosion and wear resistance.


  • o true black finish options.

Semi-fit barrels offer more precision over OEM barrels by tightening the tolerances in the breach fit. The Bar-Sto Precision Machine Semi-Fit Barrel for Glock is one of the best semi-fit barrels you can get. And it requires less fitment than most other semi-fit barrels.

This barrel is machined from 416R stainless steel bar stock. The steel has been heat treated to high hardness to improve wear resistance. The construction offers excellent precision and durability. It’s an easy upgrade over an OEM barrel.

Additionally, the rate of twist is slower than the industry standard 1-in-10 twist. This barrel sports a 1-in-16 twist rate, which reduces overstabilization for better long range performance.

The performance of this barrel is outstanding. The Marine Corps Marksman Unit has been using Bar-Sto barrels since 1977.

There are only two possible complaints about this BAR-STO barrel:

First, it only comes in a stainless steel finish. If you’re not into the look of a silver barrel in a black gun, this barrel won’t be for you.

Also, this barrel occasionally needs some custom fitment. You may have to file it a bit or have a gunsmith fit this barrel for you.

But, this barrel is the best option for those who prioritize precision in their handgun.


  • Durable, heat treated stainless steel construction offers excellent precision and durability.
  • 1-in-16 twist rate delivers better long range performance.
  • Semi-fit design gives excellent precision.


  • No black finish options.
  • May require some filing for proper fit.

7. Zev Technology Match Barrel for Glock - Competition Glock Barrel

A match grade barrel is a central piece of any competition Glock. The Zev Technology Match Barrel for Glock may not be the most affordable barrel. But it’s definitely a competition-ready barrel.

This barrel is made of pre-hardened chromium stainless steel. It’s the same steel that’s used to make match grade rifle barrels. So, this barrel delivers maximum organic precision and durability.

Additionally, this steel is exceptionally tough and corrosion resistant. So, this barrel will last just as long as the rest of your Glock.

Internally, this barrel is button rifled and broach finished. This produces an extremely smooth and corrosion resistant bore. This great rifling is protected with a match target crown. That’s how this barrel delivers competition-worthy precision and consistency.

On the outside, this barrel is pitted like a golf ball to improve cooling and rigidity

The pitting works the same as fluting. It helps this barrel retain it’s precision through intense shooting sessions.

Additionally, this Zev Technologies barrel is double honed with incredible precision and coated in a diamond-like coating (if you get the black variant), which is incredibly durable and corrosion resistant.

Overall, the only real drawback to this barrel is the price. If you’re willing to pay to get competition-grade performance, this is the barrel for you.


  • Constructed from match-grade stainless steel.
  • Extremely smooth, corrosion resistant bore.
  • External pitting improves cooling and rigidity.
  • Diamond-like coating is extremely hard and corrosion resistant.


  • Expensive.

Taking Shots

Your barrel is the heart of your handgun. So it makes sense to get a barrel that matches the type of shooting you do. Also, aftermarket barrels handle cheap lead ammunition better than the OEM Glock barrels. That means more shooting for less money.

If you want to get an upgraded barrel without any fuss and without breaking your wallet, get the Victory First Brownells Edition Glock Barrel. It’s a solid upgrade barrel that’ll hold up throughout the life of your Glock and won’t bust your budget.

Now that you know what’s out there, get a new barrel, drop it in, and get to shooting.