With This Pistol, FBI Changed Glock Forever!

Published on May 10, 2026
Duration: 9:32

This video provides an in-depth review of the Glock 17M and 19M pistols, developed for the FBI. The speaker, with extensive experience in law enforcement, details the modifications made to the Gen 4 platform to meet FBI requirements, which ultimately influenced the development of the Gen 5 Glock. Key features discussed include the flared magwell, ambidextrous slide release, removal of finger grooves, Ameriglo sights, and the Marksman barrel, highlighting how these changes improved ergonomics and functionality for agents.

Quick Summary

The Glock 17M and 19M were specially modified for the FBI, featuring a flared magwell, ambidextrous slide release, and no finger grooves. These FBI-requested changes significantly influenced the design of the Glock Gen 5, making these models pivotal in Glock's evolution.

Chapters

  1. 00:02Introduction: The FBI's Modified Glock
  2. 00:43Glock 17M: 'M' for Modified
  3. 01:02FBI Qualification Drills & Training Importance
  4. 01:44Quantico Drills with Iron Sights
  5. 02:15Glock 19M vs. Glock 17M Variants
  6. 02:37Ergonomics: Glock 19 vs. Glock 17 for Large Hands
  7. 03:22FBI's Caliber Shift: .40 S&W to 9mm
  8. 03:58FBI's Request for a New 9mm Pistol
  9. 04:25FBI's Specific Requirements for the Glock
  10. 04:29Feature 1: Flared Magwell
  11. 05:00Feature 2: Ambidextrous Slide Release
  12. 05:17Feature 3: No Finger Grooves
  13. 06:04Rarity of the Glock 17M
  14. 06:23Feature 4: Ameriglo Sights
  15. 06:31No Front Serrations: FBI Training Rationale
  16. 07:15Special Coating and Slide Bevel
  17. 07:20Trigger Performance
  18. 07:51Feature 5: Glock Marksman Barrel
  19. 08:09Glock 4.5: The Precursor to Gen 5
  20. 08:39The Coolest Gen Glock?
  21. 09:09Conclusion & Viewer Thoughts

Frequently Asked Questions

What is the Glock 17M and why is it significant?

The Glock 17M is a modified version of the Gen 4 Glock pistol, developed specifically for the FBI. Its significance lies in the unique features requested by the FBI, such as a flared magwell and removal of finger grooves, which heavily influenced the design of the subsequent Glock Gen 5 models.

Why did the FBI switch from .40 S&W to 9mm for their duty pistols?

The FBI switched to 9mm after extensive testing demonstrated that modern 9mm ammunition had advanced to a point where it could outperform larger calibers like .40 S&W and .45 ACP in critical terminal ballistics performance areas.

What are the key modifications made to the FBI's Glock 17M and 19M pistols?

Key modifications include a flared magwell for easier reloads, an ambidextrous slide release, the removal of finger grooves for better grip in various conditions, Ameriglo sights, and the Glock Marksman barrel for improved accuracy and durability.

How did the FBI's Glock contract influence the Gen 5 Glock?

The FBI's specific requirements for their modified Glocks, such as the flared magwell, removal of finger grooves, and ambidextrous slide release, were incorporated into the design of the Glock Gen 5, making the FBI models a direct precursor to the Gen 5 platform.

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