This invention (US5834676A, priority from 1996, by Mititech LLC) relates generally to remote video sighting systems. It relates specifically to an apparatus including a weapon-mounted portion and monitor.
The invention enables a user to aim a weapon from a position of safety relative to a location to be monitored, and monitor the actions of a person at the location.

A block diagram of the elements of location-monitoring apparatus
It includes an imager for generating video images of the location and person being monitored, which imager is adapted to be mounted on the weapon.
The invention includes a portion adapted to be mounted on a weapon such as a gun.

Monitoring by the head wearing and weapon mounted apparatus
The user, such as a law enforcement officer, may point weapon towards person at location, and view video images of location and person, such as a criminal suspect, from hidden and safe position, and may target and fire at person if necessary.