This allows the nevermore to be mag-mounted (including electrics) - details here - https://www.teamfdm.com/files/file/564-handle-and-nevermore-mount-to-magnetic-panels-by-bravefruitcake/

Based on this magnetic panel conversion - https://www.teamfdm.com/files/file/479-v01-magnetic-panel-conversion/?tab=details

The addition of the mag-panels give a little extra room for the nevermore to fit quite nicely into the frame without affecting any X movement.