To my knowledge, if your running it on a crt. it should work.
The light gun connects to the nintendo pcb...
don't know if the gun, would be compatible with other boards.
it's a plain old optical sensor, any old zapper type gun can be used - but as mentioned it must be a 15Khz CRT monitor.
no lcd's or scalers/vga convertors in the cab.
since i do not use a real nintendo VS. cab with original cables...
how can you plug the gun ? is there a special way to hook it up ?
(ill use it with a jamma adapter)