for the parts.
They stopped making them due to a small misunderstanding called World War Two. The Germans took over the Polish factory and had the guns made for the Wehrmacht until the Russians came in then they moved production to Steyr until the Americans invaded that area. By the time the dust settled, Poland was under Soviet rule and the Radom factory had to make Russian designs.
A few copies were made after Poland regained its freedom, but there was not enough interest to restart mass production.