Scope Mount Finder

Fit a Shield RMSc or Holosun K dot on a Picatinny rail

How an RMSc micro red dot mounts to a Picatinny rail, and the footprint it does not share.

Direct fitAn RMSc or Holosun K micro dot mounts on a Picatinny rail through an RMSc-footprint Picatinny mount. It does not fit an RMR mount.
OpticShield RMSc or Holosun K micro dotRMSc footprint
interface
MountRMSc-footprint Picatinny mount
seats on
RailPicatinny rail (MIL-STD-1913)5.23 mm slot, 10.01 mm pitch
Fit readoutBench figures
Fitment
Not compatible
the RMR mount is a different, larger cut
What to fit it with

A micro dot on the Shield RMSc footprint mounts to a Picatinny rail through a Picatinny mount cut for RMSc. The Holosun K-series and the EPS Carry use this footprint.

It is not the RMR pattern. An RMSc mount will not take an RMR dot and an RMR mount will not take an RMSc dot, so buy the mount that matches the sight's footprint.

Related fitments

Sources: Red dot footprint families, OpticFootprint · RMR vs RMSc vs ACRO footprints, JSD Supply · MIL-STD-1913 Picatinny rail dimensions, Wikipedia