The Longest Glock EVER!!! (Super Long Slide 10mm Glock)

Published on July 7, 2025
Duration: 18:53

This video showcases an experimental 16-inch slide Glock 20, dubbed the 'Longest Glock EVER,' by Keely Custom. Expert firearms instructor Scott from Kentucky Ballistics conducts extensive ballistic testing, comparing its performance with standard Glock 10mm models. The tests include velocity measurements with various ammunition types, suppressed shooting, and evaluating specialized rounds, providing valuable data for firearms enthusiasts and custom build aficionados.

Quick Summary

The 'Longest Glock EVER' is a custom 16-inch slide Glock 20 by Keely Custom, tested by Kentucky Ballistics. It achieved a 1295 fps muzzle velocity with 180-grain JHP ammo, outperforming standard Glock 10mm models, and demonstrated reliable cycling with various loads, including suppressed fire.

Chapters

  1. 00:00Intro Skit & Custom Glock Reveal
  2. 01:42Glock 10mm Comparison
  3. 02:52Initial Shooting Test (16-inch Glock)
  4. 04:46Chronograph Testing (Velocity Comparison)
  5. 06:05Suppressed Shooting Test
  6. 09:21RIP Ammo Test
  7. 12:02Underwood Ammo Test
  8. 15:28Final Targets and Outro

Frequently Asked Questions

What makes the 'Longest Glock EVER' unique?

The 'Longest Glock EVER' is a custom Glock 20 modified by Keely Custom to feature an extended 16-inch slide and barrel, significantly increasing its length compared to standard Glock models.

How does the 16-inch Glock 10mm perform in terms of velocity?

During testing with 180-grain Sig JHP ammunition, the 16-inch custom Glock achieved a muzzle velocity of 1295 fps, outperforming the standard Glock 40 (1206 fps) and Glock 20 (1148 fps).

What kind of ammunition was tested in the 16-inch Glock?

The video tested various 10mm loads, including 200-grain hard cast, 180-grain Sig JHP, 135-grain Underwood JHP, and specialized 10mm RIP ammunition, evaluating cycling and terminal performance.

Can a suppressor be used on the 16-inch Glock?

Yes, the 16-inch custom Glock features a threaded barrel, allowing for the attachment of suppressors like the 45 Ghost, which was demonstrated in the video during suppressed shooting tests.

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