Faxon Exos-513 Compensator for Glock Gen 3/FX-19 Pistols

The Faxon Exos-513 is a 9mm compensator engineered specifically for Glock Gen 3 pistols and Faxon Firearms FX-19 models. If you're running a Glock 19, 17, or 34 Gen 3 and want to dial in your shot placement faster with less muzzle rise, this compensator uses a uniquely angled single-chamber design to manage recoil where it matters most—keeping your sights on target. The angled front ports redirect gas upward as well as sideways, reducing both vertical and lateral muzzle movement so you stay consistent shot to shot.

Built from 6061 aluminum with a black anodized finish, the Exos-513 is tough enough for the range and refined enough for competition or duty use. The design sits flush against your slide when paired with Faxon barrels or any barrel that protrudes .600" or less, maintaining a clean profile without printing or snagging. You get everything needed for installation: thread locker, two 6-32 set screws, and a 1/16" Allen wrench.

One thing to know: adding a compensator changes how your pistol cycles and may require you to tweak your ammunition selection, lubrication routine, or shooting technique. It's worth the investment if you're serious about reducing muzzle climb, but don't install and expect zero adjustment. Test it thoroughly before relying on it in any critical role.

Key Features

• Angled single-chamber design reduces muzzle climb and recoil impulse
• Gas deflection reduces both vertical and lateral muzzle movement
• Flush-fit design with Faxon barrels and compatible aftermarket barrels
• 6061 aluminum construction with black anodized finish
• Includes thread locker, set screws, and installation wrench
• 1/2x28 thread pattern for 9mm pistols

Specifications

Frequently Asked Questions

Will this Glock compensator work on my Gen 4 or Gen 5 pistol?

No. The Exos-513 is engineered specifically for Glock Gen 3 models (19, 17, 34) and the Faxon FX-19. Fitment with other generations or pistol models cannot be guaranteed. If you own a Gen 4 or Gen 5, you'll need a compensator designed for that platform.

What barrel length do I need for a flush fit?

For a flush fit against your slide, your barrel should protrude .600" or less. Faxon barrels are optimized for this compensator. If you're using a different aftermarket barrel, measure the protrusion to ensure it falls within that spec.

What's included in the box?

Each compensator comes with thread locker, two 6-32 set screws, and a 1/16" Allen wrench for installation. You'll have everything needed to mount it on your pistol.

Will adding a compensator change how my pistol runs?

Yes. Compensators affect the timing and cycling of your pistol, which may require you to adjust your ammunition choice, lubrication, or shooting technique. Test the compensator thoroughly at the range before relying on it in any critical application.