The Shield RMSc footprint is the standard for micro pistol red dot sights — the compact mounting pattern found on slim, single-stack and micro-compact slides such as the SIG P365, Glock 43X/48 MOS, S&W Shield Plus and Springfield Hellcat, and on the airsoft replicas built to copy them. If your slide is cut for the RMSc, these optics fit directly. At Xtreme Tactical we stock RMSc-footprint red dots from Holosun, dispatched tracked from the UK.
This collection covers the Holosun 507K/407K series and the fully sealed EPS Carry family. Running a full-size slide? See our RMR footprint red dot sights. Browse all pistol dot sights, sealed enclosed red dot sights, mounting plates, or the full Holosun range.
Frequently Asked Questions
What is the RMSc footprint?
The Shield RMSc is a smaller mounting pattern designed for slim and micro-compact pistol slides — narrower than the RMR, so the optic sits flush on a thin slide instead of overhanging it.
Which pistols use the RMSc footprint?
Common RMSc-cut slides include the SIG P365 series, Glock 43X/48 MOS, S&W Shield Plus / Equalizer, Springfield Hellcat and many other micro-compacts. Confirm your cut before ordering, or check the footprint compatibility chart.
Is the EPS Carry an RMSc optic?
Yes — the Holosun EPS Carry uses the RMSc footprint while adding a fully enclosed emitter for extra reliability. The larger full-size EPS does not share this footprint.
How do I choose between the K-series models?
It comes down to reticle, emitter type and whether you want solar backup. Our guide to compact pistol red dot sights walks through choosing an optic for a slim slide, and the RMR vs RMSc guide covers the footprint itself.
