MOS Direct Mount RED DOT - Zulisy S6-GM

Published on March 23, 2026
Duration: 8:36

This video demonstrates a durability test for the Zulisy S6-GM red dot sight mounted on a Glock 21 Gen 5. The test involves confirming zero, then physically impacting the optic on a car hood before re-testing zero. The results show the optic maintained its zero throughout the abuse, highlighting its robust construction and value. The instructor emphasizes the direct-mount advantage for Glock MOS systems.

Quick Summary

The Zulisy S6-GM red dot offers a unique direct-mount solution for full-size Glock MOS pistols, eliminating the need for adapter plates. It features a 6 MOA bright dot, Shake Awake technology, and a side-load battery, all within a durable housing. Tested for durability, it maintained zero after significant impacts, making it a high-value option at around $135.99.

Chapters

  1. 00:00Intro Shooting Sequence
  2. 00:16Range Shooting Demonstration
  3. 00:47Slow Motion Firing Detail
  4. 00:58Zulisy S6-GM Introduction
  5. 01:13MOS Direct Mount Advantage
  6. 01:27Pricing and Discount
  7. 01:53Optic Features Overview
  8. 02:38Glock MOS Compatibility
  9. 03:12Flush Fit & Bore Axis Benefits
  10. 04:16Red Dot Features - Brightness & Clarity
  11. 05:01Red Dot Features - Other
  12. 05:23Design & Use Case Summary
  13. 06:00Torture Test Setup
  14. 06:38Zero Confirmation Shots
  15. 07:01Beat Down Rounds & Firing
  16. 07:38Torture Test Results
  17. 08:04Final Summary & Recommendation

Frequently Asked Questions

What makes the Zulisy S6-GM red dot unique for Glock MOS pistols?

The Zulisy S6-GM is notable for being one of the first red dot sights designed for a direct mount onto the Glock MOS footprint without requiring adapter plates, offering a more secure and flush fit. It is compatible with full-size Glock MOS models in various calibers.

How durable is the Zulisy S6-GM red dot sight?

During a simulated torture test involving impacts on a car hood, the Zulisy S6-GM maintained its zero, demonstrating impressive durability and reliability for its price point. All shots remained grouped after multiple abuse cycles.

What are the key features of the Zulisy S6-GM red dot?

Key features include a 6 MOA bright red dot, Shake Awake technology for auto-on, a side-load battery compartment for easy changes, clear glass with no blue tint, a durable protective hood, and push-button controls. It is also waterproof.

Is the Zulisy S6-GM compatible with all Glock MOS models?

No, the Zulisy S6-GM is designed for full-size Glock MOS footprints (9mm, .40 cal, .357 Sig, .45 Auto) and is explicitly NOT compatible with micro-compact models like the Glock 43X MOS or Glock 48 MOS.

What is the price and value proposition of the Zulisy S6-GM?

The Zulisy S6-GM has an MSRP of $169, but was available at a discounted launch price of $135.99 with a 20% off code. This makes it an exceptional value for a durable, feature-rich red dot optic for compatible Glocks.

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