How To Mount A Holosun 507K To A G43x MOS

Published on October 21, 2022
Duration: 7:46

This guide details the process of mounting a Holosun 507K optic onto a Glock 43X MOS pistol. It emphasizes the necessity of slide machining due to the 507K's Modified RMSc footprint, which differs from the standard MOS system. The video, presented by Lenny Magill of GlockStore, highlights how milling the slide allows for a lower optic height, improving co-witness with iron sights and a more natural point of aim. Proper safety precautions are stressed throughout the installation process.

Quick Summary

Mounting a Holosun 507K on a Glock 43X MOS requires professional slide machining due to the optic's Modified RMSc footprint. Milling allows the optic to sit lower, improving co-witnessing and bore axis alignment. Holosun's Circle Dot reticle aids in faster target acquisition.

Chapters

  1. 00:00Introduction to G43X MOS and Holosun 507K
  2. 01:14Holosun Circle Dot Technology
  3. 02:00Mounting Challenges and Solutions
  4. 02:57Machining and Direct Mounting
  5. 05:11GlockStore Service and Facility

Frequently Asked Questions

What is required to mount a Holosun 507K on a Glock 43X MOS?

Direct mounting a Holosun 507K on a Glock 43X MOS requires professional slide machining. The 507K uses a Modified RMSc footprint, and the MOS slide needs its posts milled down to allow the optic to sit flush for optimal co-witnessing and a lower bore axis.

What are the benefits of milling the slide for an optic?

Milling the slide for an optic like the Holosun 507K allows it to sit lower, closer to the bore axis. This significantly improves co-witnessing with iron sights and provides a more natural point of aim, enhancing overall shooting performance and speed.

What is the Holosun Circle Dot reticle?

The Holosun Circle Dot reticle features a large outer circle that helps shooters quickly find the central aiming dot, especially during the draw or presentation. This design enhances speed and accuracy, making it beneficial for transitioning from iron sights.

Where can I get my Glock slide milled?

Services like GlockStore offer professional slide milling for optics. They provide a turnaround time, such as their advertised '10 Days or Less!' service, ensuring efficient modification for direct optic mounting.

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