The original Shield RMS and the compact RMSc are easy to confuse. Here is exactly how the two footprints differ so you order the right cut.
| Spec | Shield RMS | Shield RMSc |
|---|---|---|
| What it stands for | Reflex Mini Sight (Shield Sights) | Reflex Mini Sight, compact |
| Emitter | Open | Open |
| Mounting pattern | Two mounting screws with locating posts | Two mounting screws with locating posts, narrow profile |
| Key dimensions | — | Rear mounting screws 14 mm (0.55") apart · front locating sockets 17 mm (0.66") apart · front-to-rear spacing 32.8 mm (1.29") |
| Optics we track | 3 listed | 25 listed |
Are the Shield RMS and Shield RMSc compatible?
Not cross-compatible. The Shield RMS and Shield RMSc are distinct footprints — an optic built for one won’t sit on a slide cut for the other without a dedicated adapter plate (where one exists). Buy the optic that matches your slide’s cut, or a plate that converts it.
Popular Shield RMS optics
- Shield Sights RMS2 Glass Edition Reflex Mini 4MOA OD Green
- Shield Sights RMSW HD Heavy Dot Reflex Mini Sight Blem
- Shield Sights SMS2 Glass Edition Mini Sight 8MOA