Barrel PartsAgency ArmsSold by Brownells

Agency Arms

417s Single Port Compensator - 417s Single Port Comp For GlockA(R) Gen 4, Blk, 9mm

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Agency Arms

417 compensator for Glock Gen

Standard 1/2x28

Thread pitch

Single Top

Venting port design

Front Sight

Hole for transferring the existing

Designed Use

OEM recoil spring assembly

$100.00
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SKU: 100033473

Overview

Built for Glock Gen 4 9mm pistols, this compensator is intended for shooters who want a threaded muzzle accessory that works with the OEM recoil spring assembly. Its single top venting port is paired with a front sight hole, allowing the existing front sight to be moved from the slide to the comp. Compatibility with the 17, 19, and 34 makes it a practical option for owners looking to set up a range or duty pistol with a more streamlined front-end configuration. The package includes the compensator and two set screws.

Why Hunters Choose the Agency Arms

Standard 1/2x28

Threading supports common 9mm threaded-barrel

Single Top

Venting port provides a simple

Front Sight

Hole lets you transfer the

Designed Work

The OEM recoil spring assembly

Compatible Glock

Glock 17, 19, and 34

Key Features

  • Agency Arms 417 compensator for Glock Gen 4 9mm pistols
  • Standard 1/2x28 thread pitch
  • Single top venting port design
  • Front sight hole for transferring the existing front sight
  • Designed to use the OEM recoil spring assembly
  • Compatible with Glock 17, 19, and 34
  • Includes compensator and two set screws

Best Used For

  • Glock Gen 4 9mm owners setting up a compatible 17, 19, or 34 pistol
  • Shooters wanting a compensator that works with the OEM recoil spring assembly
  • Users who want to transfer an existing front sight to the compensator
  • Builders needing a 1/2x28 threaded compensator with included set screws

Specifications

Caliber9mm
ColorBlk
Compatible Models17, 19, 34
Designed To Utilize Oem Recoil Spring AssemblyYes
Front Sight HoleYes
GenerationGen 4
Included ItemsComp, 2 Set Screws
Thread Pitch1/2x28
Vent Port TypeSingle top venting port

Pros

  • Standard 1/2x28 threading supports common 9mm threaded-barrel setups.
  • Single top venting port provides a simple compensator design.
  • Front sight hole lets you transfer the existing front sight.
  • Designed to work with the OEM recoil spring assembly.
  • Compatible with Glock 17, 19, and 34 models.
  • Includes the compensator and two set screws.

Considerations & Trade-offs

  • Requires a threaded 1/2x28 barrel, so it is only suitable for setups already configured for that thread pitch.
  • Designed to work with the OEM recoil spring assembly, which limits tuning flexibility for users looking to change that component.
  • Compatibility is listed for Glock 17, 19, and 34; it is not presented as a universal fit for other models.
  • The front sight hole helps transfer an existing front sight, but installation still depends on your current slide and sight setup.

Suggested Comparisons

  • Pistol compensators
  • Glock 9mm accessories
  • Threaded barrel muzzle devices
  • Handgun recoil management accessories

Suggested Accessories

  • Handgun cleaning kit
  • Thread protector
  • Front sight tool
  • Torque driver

Frequently Asked Questions

Which Glock models is the Agency Arms 417 Single Port Compensator compatible with?

The product data lists compatibility with Glock 17, 19, and 34 models.

What thread pitch does this compensator use?

It is threaded with the standard 1/2x28 thread pitch.

Does this compensator require a different recoil spring assembly?

No. The description says it is designed to utilize the OEM recoil spring assembly.

Can I keep my existing front sight when installing this compensator?

Yes. The compensator includes a front sight hole, which allows you to transfer your existing front sight from your slide to the comp.

What is included with the compensator?

The included items listed are the compensator and 2 set screws.