Fit a Trijicon RMR or RMR-pattern dot on a Picatinny rail
How an RMR or RMR-pattern red dot mounts to a Picatinny rail, and the footprints it does not share.
Direct fitAn RMR or RMR-footprint dot mounts on a Picatinny rail through an RMR Picatinny mount. It does not share the RMSc or Docter footprints.
OpticTrijicon RMR or RMR-pattern dotRMR footprint (two screws, two posts)
interface
MountRMR Picatinny mount
seats on
RailPicatinny rail (MIL-STD-1913)5.23 mm slot, 10.01 mm pitch
Fit readoutBench figures
FitmentNot compatible
Shield RMSc and Docter/Noblex are different cuts
What to fit it with
Search Amazon for Trijicon RMR Picatinny mountaffiliate searchFind Trijicon RMR Picatinny mount on eBayaffiliateSearch Amazon for RMR pattern red dot riser mountaffiliate searchFind RMR pattern red dot riser mount on eBayaffiliate
The RMR footprint uses two screws and two front posts. An RMR Picatinny mount carries that pattern and clamps the rail, so any RMR-cut dot including the SRO and RMR-pattern Holosun dots fits it.
It is a full-size footprint. A Shield RMSc micro dot or a Docter-footprint dot needs its own mount or plate, since those cuts do not interchange with the RMR.
Related fitments
- ›Trijicon RMR footprintthe pattern
- ›Shield RMSc footprintdoes not interchange
- ›AR-15 red dot mount heightpick the height
Sources: Red dot footprint families, OpticFootprint · RMR vs RMSc vs ACRO footprints, JSD Supply · MIL-STD-1913 Picatinny rail dimensions, Wikipedia