System for mounting a helmet-mounted device to a helmet

A system for mounting a helmet-mounted optical device having an optical axis to a helmet, the system comprising:

• a base portion configured to be movably coupled to the helmet;
• a frame coupled to the base portion and configured to rotate about an axis that is parallel to the optical axis between a first rotational position corresponding to a right-eye position for the frame and a second rotational position corresponding to a left-eye position for the frame;
• and
• an interconnect mechanism moveably coupled to the frame, said interconnect mechanism including a first portion translationally coupled to the frame by a slot and projection arrangement for adjusting a pupillary distance of the system, the first portion slideably coupled to the frame and configured to move the helmet-mounted optical device between a right-eye device position and a left-eye device position offset from the right-eye device position, the helmet mounted optical device directly mounted to a second portion of the interconnect mechanism, the second portion rotatably coupled to the first portion about the optical axis for rotating the helmet mounted optical device with respect to the first portion between a device use position for the helmet-mounted optical device and a stow position for the helmet-mounted optical device.