@herringtonarms HAQR System is really unique!

Published on February 3, 2026
Duration: 1:26

This guide details the installation and removal process for the Herrington Arms HAQR (Harrington Arms Quick Release) system, demonstrated by Jacob from Herrington Arms. The system utilizes a spring-loaded detent for rapid attachment and detachment of muzzle devices like compensators and suppressor adapters. It offers a 50-state compliant solution for firearms where threaded barrels are restricted.

Quick Summary

The Herrington Arms HAQR (Harrington Arms Quick Release) system offers a unique solution for muzzle device attachment. It uses a spring-loaded detent for quick, tool-less installation and removal of compensators and 1/2x28 suppressor adapters, and is designed to be 50-state compliant.

Chapters

  1. 00:00Shot Show Introduction & HAQR System
  2. 00:04What is the HAQR System?
  3. 00:13HAQR Quick Release Mechanism
  4. 00:20HAQR Compensator Attachment
  5. 00:28HAQR Suppressor Adapter
  6. 00:41Suppressor Compatibility & Legality
  7. 01:01Attaching & Detaching HAQR
  8. 01:13Availability & GlockStore Exclusive

Frequently Asked Questions

What does HAQR stand for and how does it work?

HAQR stands for Harrington Arms Quick Release. It's a system that uses a spring-loaded detent mechanism, activated by a button on the side, to allow for rapid attachment and detachment of muzzle devices like compensators and suppressor adapters.

Is the Herrington Arms HAQR system legal in all states?

Yes, the HAQR system is designed to be 50-state compliant. It achieves this by not requiring a permanently attached threaded barrel, which is a common restriction in some states.

What types of accessories can be used with the HAQR system?

The HAQR system is available with a compensator and a 1/2x28 suppressor adapter. The adapter allows for the threading of any standard 1/2x28 suppressor.

How do you attach and detach the HAQR system?

To attach, press the side button and slide the HAQR onto the barrel. To detach, press the button again and slide it off. A small tool is provided for easier button depression if needed.

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