NEW Glock Factory Gen 3 MOS Spare Slides HANDS-ON

Published on March 6, 2025
Duration: 12:09

This video showcases new Glock factory Gen 3 MOS spare slides, a crucial upgrade for California residents restricted to Gen 3 models. It details the unboxing, installation process on a Gen 3 frame, and various optic mounting options using adapter plates. The content also covers adapting these slides for use on Gen 4 and Gen 5 Glock frames, highlighting their versatility for custom builds.

Quick Summary

The new Glock factory Gen 3 MOS spare slides offer front serrations and a Gen 5-style finish. They come with internal parts installed, excluding the barrel and guide rod. These slides are compatible with Gen 3 frames and can be adapted for Gen 4/5 frames using specific adapters.

Chapters

  1. 00:00Intro: New Glock Gen 3 MOS Slides
  2. 01:14Unboxing & Slide Components
  3. 02:02Installing MOS Slide on Gen 3 Frame
  4. 03:56Optic Mounting: Holosun SCS & Adapter Plates
  5. 05:22Gen 3 MOS Slide Compatibility with Gen 4/5 Frames

Frequently Asked Questions

What are the key features of the new Glock factory Gen 3 MOS spare slides?

The new Glock Gen 3 MOS spare slides feature front serrations and a finish similar to Gen 5 models. They come with internal parts installed, excluding the barrel and guide rod, and are designed for easy optic mounting via the Modular Optic System.

Can Glock Gen 3 MOS slides be used on Gen 4 or Gen 5 frames?

Yes, Glock Gen 3 MOS slides can be adapted for use on Gen 4 and Gen 5 frames. This requires changing the slide cover plate and using a specific nose ring adapter designed for this cross-generation compatibility.

What optics can be mounted on the Glock Gen 3 MOS slide?

The Glock Gen 3 MOS slide supports various optics. For example, the Holosun SCS can mount directly without an adapter plate, while other optics like the Holosun EPS Carry can be mounted using specific adapter plates provided by Glock or third-party manufacturers.

What parts are included with the Glock Gen 3 MOS spare slide?

The Glock Gen 3 MOS spare slide comes with the internal components already installed, such as the striker assembly, extractor, and safety plunger. However, it does not include the barrel or the guide rod, which need to be transferred from the original slide.

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