Custom Glock 43X MOS Review: Upgraded EDC Perfection - Latest Version

Published on July 24, 2022
Duration: 10:11

This Glock 43X MOS build review details several key upgrades for enhanced EDC performance. It covers the Johnny Glock VEX trigger for improved feel, Shield Arms S15 magazine reliability fixes, and optic/sight choices like the Holosun 507K with Night Fision sights for optimal co-witness. The review also warns against mixing metal and polymer magazine release components to prevent damage and malfunctions.

Quick Summary

Reliability issues with Shield Arms S15 15-round magazines on a Glock 43X MOS were resolved by shortening the right-side optic mounting screw, which was interfering with the extractor. This simple fix restored proper function to the 15-round magazines.

Chapters

  1. 00:00Introduction & Build Update
  2. 00:34Goon Tape vs. Hockey Tape
  3. 01:24Johnny Glock VEX Combat Trigger Review
  4. 03:28Optic & Sight Upgrades (Holosun, Night Fision)
  5. 05:46Shield Arms S15 Magazine Reliability Fix
  6. 07:44Mag Release Material Warning
  7. 08:44Training Philosophy & Responsibility

Frequently Asked Questions

How was the reliability issue with Shield Arms S15 magazines on the Glock 43X MOS resolved?

The reliability issues with Shield Arms S15 15-round magazines were fixed by shortening the right-side optic mounting screw. This screw was too long and interfered with the firearm's extractor, causing jams. A shorter screw resolved the problem.

What are the benefits of the Johnny Glock VEX Combat Trigger system?

The VEX Combat Trigger offers an incredibly smooth pull and features a comfortable flat-face shoe with curved edges. It provides an improved shooting experience over older trigger systems, with options for full kits or just the lower trigger assembly.

What is the recommended practice for magazine release and magazine material compatibility?

It is strongly advised to use 'polymer to polymer, metal to metal' for magazine release and magazine compatibility. Using a metal release with polymer magazines can damage the magazines and lead to dangerous spontaneous drops.

Which sights are recommended for a Glock 43X MOS with an optic for co-witnessing?

Night Fision Optics Ready Stealth Series sights are recommended for a lower-third co-witness with optics like the Holosun 507K on a Glock 43X MOS. They are high quality but may require professional installation due to tight tolerances.

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