If you’re thinking about swapping out your Glock’s barrel, you're probably looking for better accuracy, more functionality, or maybe just a bit of fun at the range. At 3CR Tactical, we get it. We carry a deep selection of Glock barrels, including Glock threaded barrels, so you can get exactly what your firearm needs without spending a fortune.
As a small family-run shop, we keep things lean so we can pass the savings on to you. No fluff, no upsell games just reliable parts that work, from brands we actually use ourselves. Every product on this page is carefully selected and reviewed for performance and workmanship before going on sale.
The most important thing when choosing a barrel for your Glock is knowing how you shoot and what you want from the upgrade. Some shooters want a little extra precision. Others need a suppressor-ready setup. And a few of us just like to tweak for the sake of tinkering. That’s cool too.
At 3CR, we offer options for Glock pistols including multiple variants such as the Glock 19, 17, 43, 34, 23, and more. Whether you’re going compact, full-size, or even 10mm with something like the Glock 20, we’ve got a barrel that fits both your slide and your goals. You’ll find Glock threaded barrels, non threaded barrels, extended length options, and those built around specific caliber needs.
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Glock barrels are usually made from heat-treated steel and that’s true whether you're talking OEM or aftermarket. Most high-quality options use either 416R stainless or 4150 CMV steel. The stainless variants offer improved corrosion resistance while CMV steel gives you extra durability under high round counts.
Many barrels are coated for longevity and performance. Common finishes include nitride, titanium nitride, and diamond-like carbon. These coatings aren’t just about looks they also help reduce fouling and wear over time. For threaded options, extra care goes into reinforcing the ends to reduce wear from attachments.
Start by making sure your Glock is completely unloaded. Field strip the firearm and remove the barrel from the slide. Apply solvent to a bore patch, then use a cleaning rod to push it through. Follow up with a few passes from a bore brush and finish with dry patches until they come out clean.
For the outer surface, wipe down the barrel using a cloth and solvent. If you’ve chosen a Glock threaded barrel, pay special attention to the threads to prevent buildup or debris that can affect attachments.
Yes they are if you want flexibility and improved control. A Glock threaded barrel allows you to attach accessories like suppressors and compensators which can improve recoil management and help you stay on target. Reasons to go with a Glock threaded barrel include:
These barrels are manufactured for Glock pistols with tight tolerances and strong materials, ensuring performance under pressure. Some shooters install them for practical performance. Others just like the custom look.
The most accurate barrel is the one that balances your shooting goals with your Glock’s configuration. Match-grade barrels are cut with tighter tolerances and built from premium materials which can improve groupings in competitive shooting.
Brands that focus on accuracy often design their barrels with specific rifling patterns or advanced coatings to help with consistency. But let’s be honest, most shooters will see a noticeable difference just by switching to a well-made aftermarket barrel over stock.
Some barrels are manufactured with a focus on gen-specific Glock compatibility to maximize lockup and slide timing. These seemingly small details can actually lead to improved shot-to-shot accuracy across a variety of calibers.
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Glock pistols come in multiple variants across different generations and sizes. A Gen 3 Glock 19 barrel may not fit a Gen 5 slide. That’s why it's important to read the product description before adding anything to your cart.
We offer barrels for Glock 19, 17, 43, 26, 48, 34, 20, 21, 23, 22, and 33. Whether you're using a full-size or compact, threaded or non threaded, each barrel is clearly marked for model and gen compatibility.
Some items on this site also offer additional fitment info, helping you make the right choice before submitting your order. If you're ever unsure, reach out. We’ll give you straight answers, not just sales talk.
We don’t just stock Glock barrels, we believe in them. Every item on this site is chosen with care because we know what it means to spend your hard-earned money on a part that has to work. We’ve tested these products, talked to customers, and read every review that comes in.
Being a small operation gives us an edge - we move quickly, offer honest prices, and pay attention to what shooters really want. We also carry options across a range of price points so whether you're building a Glock from scratch or just replacing an old barrel, there’s something for everyone.
