NOTE: Our P365-FUSE slides are cut to OEM factory depth, which is deeper than all of our other 365 variant slides. A new chart will be made for P365-FUSE slides with their applicable cowitness amounts.
This page is a working reference for those who want to plan out their optic and sight options with our slides. Most of these optic cuts are available through our special order pages. The chart below summarizes most of the options we offer with sight pictures for a lower 1/3rd cowitness. Optics not listed below have not been tested for fitment.
As always, feel free to reach out to info@norsso.com for any questions.
| Optic/Sight setup info - SIG P365 all sizes EXCEPT FUSE [Updated 8/18/26] |
| Optic | Norsso Optic Cut Option | Night Fision [.167"-.165"] OEM | Night Fision [.240"-.238"] | Night Fision [.289"-.287"] | Supp. Height [.345"-.332"] | Special sight required | Notes |
| Holosun 407K/507K | RMSc Shield/Holosun 507K |  |
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| Holosun EPS | RMSc Shield/Holosun 507K | x | Optic does not come with required hardware for direct mounting. Order some here | ||||
| Holosun EPS Carry | RMSc Shield/Holosun 507K |  |
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| Holosun SCS Carry | RMSc Shield/Holosun 507K |  |
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| RomeoX Compact | RMSc Shield/Holosun 507K |
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| Vortex Defender CCW | RMSc Shield/Holosun 507K |  |
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| Trijicon RMRcc | Trijicon RMRcc |  |
