This is probably one of the earliest all-nylon, non-modular webbing systems ever made. It is likely the direct inspiration for the Niemoller webbing as well as a variety of other commercial load bearing systems.
Likely commercial production due to tags and lack of IDF stamp (see TAP 47/56 page for a clear example of this stamp).
Outside of Israel, US Special Forces used these harnesses in limited quantities. The two photos I have been able to find are all from 1991 – 1992.