What is Co-witness? Red Dot Optic Slide Cuts

Published on May 20, 2022
Duration: 18:54

This video details GlockStore's slide cut program for red dot optics, explaining the concept of co-witnessing with iron sights. It highlights the necessity of suppressor-height sights for co-witnessing and introduces the 'no co-witness' option for a cleaner sight picture. The discussion also covers optic cover plates and proper shipping methods for slides.

Quick Summary

Co-witnessing aligns iron sights with a red dot optic. Standard sights are too low; suppressor-height sights are needed. Alternatively, the 'no co-witness' option removes the rear sight dovetail for a cleaner view. Proper shipping with sturdy boxes and bubble wrap is crucial for slide services.

Chapters

  1. 00:00Intro: GlockStore Slide Cut Program
  2. 01:53What is Co-Witness?
  3. 03:45Suppressor-Height Sights for Co-Witness
  4. 05:35The No Co-Witness Option
  5. 08:10Optic Cover Plates (Speed Plates)
  6. 11:00Red Dot Shooting Technique Adjustment
  7. 14:30Shipping Advice & Summary

Frequently Asked Questions

What is co-witnessing with a red dot sight?

Co-witnessing means aligning your iron sights with the red dot sight through the optic's window. This requires taller, often called suppressor-height, sights so they are visible above the optic mount when looking through the red dot.

Do I need special sights for co-witnessing a red dot on my Glock?

Yes, standard factory iron sights are usually too low. You'll need suppressor-height sights, like those from Ameriglo or Night Fision, to achieve a proper co-witness with most red dot optics mounted on a slide cut.

What is the 'no co-witness' option for red dot optics?

The 'no co-witness' setup involves removing the rear sight dovetail from the slide. This allows the red dot optic to be mounted further back, providing a cleaner field of view without the iron sights potentially obstructing the view.

How should I ship my Glock slide for optic cuts?

When shipping your slide for machining, use a sturdy cardboard box and pack it securely with ample bubble wrap. This protects the slide from damage during transit to and from the gunsmithing service.

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