New Osight SE Enclosed Optic RMSc - GREEN

Published on March 24, 2026
Duration: 10:15

This review covers the Osite SE enclosed green dot optic, highlighting its RMSc/Hollow Sun K footprint compatibility for micro-compact firearms. Key features include a low-profile design, co-witness capability with iron sights, a fully enclosed emitter for durability, aspherical glass for clarity, and a multi-reticle option (2 MOA dot, 32 MOA circle, or both). The optic also boasts motion-activated wake-up, integrated rear sights, IPX7 waterproofing, and a side-load battery compartment. A rigorous torture test demonstrated its robustness and ability to hold zero.

Quick Summary

The Osite SE is a fully enclosed green dot optic compatible with RMSc and Hollow Sun K footprints, ideal for micro-compact pistols. Its low-profile design allows co-witnessing with iron sights, and it features aspherical glass for clarity, a multi-reticle system (2 MOA dot, 32 MOA circle, or both), and IPX7 waterproofing.

Chapters

  1. 00:00Intro & Osite SE Announcement
  2. 01:03Introducing the Osite SE
  3. 01:11Osite SE Key Features
  4. 01:23Footprint Compatibility (RMSc/Hollow Sun K)
  5. 01:34Osite SE Lineup History
  6. 01:53Focus: Multi-Retical Green
  7. 01:56Sale & Purchase Information
  8. 02:10Disclosure & Review Approach
  9. 02:26Upcoming Torture Test
  10. 02:34Low Profile & Co-Witness
  11. 02:55Fully Enclosed Emitter Benefits
  12. 03:30Aspherical Glass & Clarity
  13. 03:37Brightness & Anti-Reflective Coatings
  14. 03:59Multi-Reticle Options (2 MOA, 32 MOA)
  15. 04:35Push Button & Motion Awake
  16. 04:47Integrated Rear Sights
  17. 04:59Protected Hood & Torture Test Preview
  18. 05:18Waterproof Rating (IPX7)
  19. 05:35Duty Use Potential
  20. 05:38Previous Torture Test Successes
  21. 06:01Low Battery Indicator
  22. 06:33Overall Impression
  23. 06:38Sale Pricing
  24. 06:45Heading to the Range for Torture Test
  25. 06:51Torture Test Setup (7 Yards)
  26. 07:19Initial Firing & Zero Confirmation
  27. 07:41Beatdown Phase Begins
  28. 08:21Torture Test Results & Zero Hold
  29. 08:43Post-Torture Test Analysis
  30. 08:45Mounting Hardware & Attention to Detail
  31. 09:03Durability & Finish Wear
  32. 09:15Summary of Osite SE Performance
  33. 09:18Why Side-Load Batteries are Preferred
  34. 09:31Personal Recommendation
  35. 09:42Recap of Key Features
  36. 10:00Final Thoughts & Thanks
  37. 10:13Outro

Frequently Asked Questions

What firearms are compatible with the Osite SE optic?

The Osite SE optic is designed to fit the RMSc and Hollow Sun K mounting footprints. This makes it compatible with a wide range of micro 9mm and micro 380 ACP pistols commonly used for concealed carry and personal defense.

What are the main advantages of the Osite SE's fully enclosed emitter design?

The fully enclosed emitter protects the internal components from dust, debris, and moisture. This ensures a clear sight picture and reliable operation, especially in harsh environments, preventing issues like emitter clogging common in open-emitter designs.

Does the Osite SE optic allow co-witnessing with iron sights?

Yes, the Osite SE features an exceptionally low-profile and flat design that allows it to co-witness with traditional iron sights on many firearms, a feature often not found on similar-sized optics.

What reticle options are available on the Osite SE?

The Osite SE offers a versatile multi-reticle system. Users can choose between a 2 MOA dot for precision, a 32 MOA circle for rapid target acquisition, or a combination of both the dot and circle.

How durable is the Osite SE optic?

The Osite SE has undergone rigorous testing, including being racked against a car hood and dropped, and has consistently held zero. It also boasts an IPX7 waterproof rating, demonstrating significant durability for tactical and defensive applications.

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