In the Radar Man book I read, he said it’s primary mission was to take out a Soviet, radar controlled anti-aircraft gun, which I believe was called the Buzz Saw.
That is definitely "the Buzz Saw" - it's also no longer relevant against anything besides helicopters due to low run on gun-based AA (nor is its updated version, the Tunguska, or derivative, The Pantsir).
https://www.amazon.com/dp/B07932Z7WV/ref=nodl_?tag=duckduckg...
Maybe it was this:
https://en.m.wikipedia.org/wiki/ZSU-23-4_Shilka