Glock "Uncommanded Discharge" w/ Cutaway Demonstration @IvanPrintsGuns (Sig P320 Pt 1)

Published on August 3, 2025
Duration: 15:51

This video demonstrates how a jarring force can cause an uncommanded discharge in a striker-fired pistol, using a cutaway Glock 19. The speaker explains the mechanics of sear engagement and energy release in striker-fired versus hammer-fired systems. The demonstration highlights that while the Sig P320 has received attention for this issue, the underlying mechanical principles can apply to other striker-fired designs.

Quick Summary

A cutaway Glock 19 demonstration shows that a jarring force on the slide can cause an uncommanded discharge by releasing the striker, even when the trigger is held at its 'wall'. This is due to the mechanics of sear engagement, which is approximately 1mm in a Glock.

Chapters

  1. 00:00Intro: Uncommanded Discharge Demo
  2. 01:59Mechanical Demonstration: Trigger Wall & Jarring
  3. 03:47Context: IvanPrintsGuns & Community
  4. 05:24Glock 19 Internals Deep Dive
  5. 09:21Firearm Physics: Sear Engagement Explained
  6. 11:42Striker vs. Hammer Fired Comparison

Frequently Asked Questions

Can a Glock 19 experience an uncommanded discharge?

Yes, this video demonstrates that a jarring force applied to the slide of a cutaway Glock 19 can cause the striker to release and fire the weapon without further trigger movement, similar to phenomena observed in other striker-fired pistols.

What is sear engagement in a firearm?

Sear engagement is the critical overlap between the sear (part of the trigger mechanism) and the striker or hammer, which holds the firing pin under spring tension. It's typically around 1mm in a Glock 19.

How does a striker-fired pistol differ from a hammer-fired pistol mechanically?

Striker-fired pistols store energy in a partially cocked striker within the slide, while hammer-fired pistols store energy in a fully cocked external hammer within the frame, leading to differences in component arrangement and sear engagement.

What caused the uncommanded discharge in the demonstration?

The demonstration used a nut and bolt to hold the trigger at its 'wall' and then applied a jarring force to the slide, causing the striker to release due to the mechanics of sear engagement and energy transfer.

Related News

All News →

More Reviews Videos You Might Like

More from JaredAF

View all →