Have you ever seen those barrels with straight or spiral grooves running the length of them, from breech to muzzle?
Those grooves are called fluting, and though that may have arrested your attention, they’re not technically there for cosmetic reasons.
Let’s take a look at why fluted barrels exist in the first place, along with whether or not it makes sense to get a Glock 19 barrel sporting this feature.
What Is Fluting?
First, let’s back up a bit. We need to know what fluting is first, and it takes many forms.
Basically, fluting is any machining process that removes metal stock from the exterior of the barrel.
Common types of fluting include straight, spiral, flat, pentagonal, and hexagonal fluting. There are some other types, as well, such as diamond and X-pattern fluting.
Granted, many of these methods result in a barrel that is quite eye-catching, but the truth is fluting is done for performance first and aesthetics second.
Why Does It Matter?
The thing about a fluted barrel is that it will have the same profile as a non-fluted barrel, but less mass.
This makes fluted barrels lighter (albeit less rigid) than their non-fluted counterparts. As you might imagine, this has the potential to improve handling, especially among platforms that have heavy barrels.
But fluting doesn’t simply reduce weight. It also increases the surface area, which significantly compounds the barrel’s ability to dissipate heat.
Herein lies the real advantage of a fluted Glock 19 barrel. Length and weight are negligible in a handgun of this size, but heat dissipation is not.
As a barrel heats up under periods of high sustained fire, it will expand. Unfortunately, even with advanced metallurgical practices and tempering, it’s impossible to create a barrel that heats up and expands with perfect uniformity.
This results in a barrel that puts uneven pressure on the round inside the bore, and diminishes the spin-stability that should be imparted on the round as it travels through the barrel.
The result is that hot barrels are less accurate.
Now, granted, this is most noticeable when firing at extended ranges, under which conditions groups may seem to “open up” when firing through a hot barrel. That said, the ability of a barrel to heat up and cool down still makes a difference at close and intermediate ranges, though the effects might be much less pronounced.
Either way, a fluted Glock 19 barrel will inherently resist heat-induced aberrations in accuracy, and will be somewhat lighter than one that is not, which may also improve handling.
Where Can You Get a Quality, Fluted Glock 19 Barrel Online?
If you’re interested in learning more about the benefits of fluted Glock 19 barrels, visit NineX19. They carry several barrel and barrel and slide combos, as well as threaded barrels. Select options offer two different styles of fluting – flat pentagonal and spiral.
For what it’s worth, they also sell barrels for other popular Sig and Glock pistols. Visit their website for more information or get in touch with them directly if you have questions about product specs or compatibility.
