SilencerCo Threaded Barrel for Glock 19 - 1/2x28 AC862

The SilencerCo Threaded Barrel for Glock 19 is purpose-built for shooters who want to run a suppressor on their carry or duty gun. This 4.5-inch barrel threads on the 1/2x28 standard used by most 9mm suppressors, giving you the option to add sound reduction without permanent modifications to your pistol. It's machined from 416R stainless steel and available in black nitride or natural stainless finish — both tough enough for regular range use and reliable enough for serious shooters who demand consistency.

SilencerCo designed these barrels with real-world compatibility in mind. This model fits Glock 19 Gen 1 through Gen 5, as well as the Glock 19X and Model 45, so whether you're running an older Gen 3 or the latest generation, you've got coverage. Drop-in installation is straightforward — no gunsmithing required. A thread protector comes included, so you can keep your threads clean and safe when you're not suppressed.

If you're building a 9mm pistol setup that balances portability with the flexibility to suppress, or if you already own suppressors with 1/2x28 threads and want to extend their use beyond your rifle, this barrel opens that door. It's a practical upgrade for hunters reducing noise on property, shooters protecting their hearing at the range, or anyone who values the option to run quiet when it matters.

Key Features

• 416R stainless steel construction for durability and corrosion resistance
• 1/2x28 threads — the standard for most 9mm suppressors
• Drop-in compatible with Glock 19 Gen 1–5, Model 45, and 19X
• 4.5-inch barrel length maintains slide function and ergonomics
• Available in black nitride or natural stainless finish
• Includes thread protector to keep threads clean

Specifications

Frequently Asked Questions

Will this barrel work with my Glock 19 Gen 3?

Yes. The SilencerCo AC862 is compatible with Glock 19 Gen 1 through Gen 5, so it'll fit Gen 3 models without any issues.

What suppressors fit this 1/2x28 thread pattern?

The 1/2x28 thread is the standard for most 9mm suppressors. We carry a range of options — stop by or browse our suppressor selection to find the right fit for your setup.

Do I need a gunsmith to install this barrel?

No. This is a drop-in barrel — you can swap it in yourself without any modifications or special tools. If you're uncomfortable doing it, we're happy to help or recommend a local gunsmith.

Is the thread protector included?

Yes. The barrel ships with a thread protector to keep the threads safe and clean when you're not running a suppressor.