A Suppressor on a Glock 19… Does It Really Work?

Published on July 8, 2021
Duration: 34:48

This guide details the process of attaching and testing a suppressor on a Glock 19, emphasizing the importance of correct thread pitch, the function of booster assemblies for semi-automatic handguns, and the impact of ammunition type (supersonic vs. subsonic) on noise reduction. It highlights that suppressors significantly reduce sound and felt recoil, making shooting more pleasant and potentially hearing-safe. The information is presented with the authority of Lenny Magill, CEO of GlockStore, who possesses deep knowledge of NFA regulations and firearm mechanics.

Quick Summary

Suppressors on a Glock 19 significantly reduce noise and felt recoil, but require specific considerations. A booster/Nielsen device is often necessary for reliable cycling on tilting-barrel actions. Using subsonic ammunition, like 147gr 9mm, is crucial for maximizing sound reduction by avoiding the sonic crack produced by supersonic rounds.

Chapters

  1. 00:00Introduction to Suppressors
  2. 01:30Hardware Overview
  3. 02:12History and Invention
  4. 03:53How Suppressors Work
  5. 07:09Legality and the NFA
  6. 11:47Thread Pitch and Mechanics
  7. 13:34The Booster Assembly
  8. 15:57Ammunition: Supersonic vs. Subsonic
  9. 16:15Live Fire Testing

Frequently Asked Questions

How does a suppressor affect the cycling of a Glock 19?

A Glock 19 with a tilting barrel action typically requires a booster or Nielsen device on the suppressor to ensure reliable cycling. This component compensates for the suppressor's weight and backpressure, allowing the barrel to tilt and the slide to cycle independently.

What is the correct thread pitch for a Glock 19 factory threaded barrel?

Glock factory threaded barrels for models like the Glock 19 commonly feature a 13.5x1 Left-Hand (LH) thread pitch. This specific pitch ensures the suppressor tightens securely during the firearm's operation due to the bullet's rotation.

Does using a suppressor make a Glock 19 completely silent?

No, suppressors do not make firearms completely silent. They significantly reduce the noise level, making shooting more pleasant and potentially hearing-safe, but a distinct sound signature will still be present, especially with supersonic ammunition.

What type of ammunition is best for suppressed shooting with a Glock 19?

Subsonic ammunition, such as 147-grain 9mm, is recommended for suppressed shooting. It travels below the speed of sound, eliminating the 'crack' associated with supersonic rounds and maximizing the noise reduction benefits of the suppressor.

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