The swastika symbol (卐 is a cross with four arms of equal length with the ends of each arm bent at right angle in right facing form or mirrored left facing form (卍. Early archaeological evidence of swastika-shaped ornaments dates back to the ancient civilisation as well as in the art of the Egyptians, Romans, Greeks, Celts, Native Americans, and Persians as well as; specifically in Hinduisms, Jainism and Buddhism as a sacred symbol of good luck.
Swastika is derived from Sanskrit word Savstika, “su” meaning “good”, “asti” meaning “to be” (well-being, good fortune, and “ka” as a suffix.
CZJ stands for Carl Zeiss Jena. Carl Zeiss was the scientist, Jena is (still) the city. That's what gave this East German company the nameAn aside...I have a cousin who is a MIT graduate now satellite engineer who was working on a project a few years ago concerning optical systems engineered in Zena for some satellite his company was working for. He demonstrated to his superiors that Zena's calculations were incorrect. They sent him over to Zena to straighten them boys out.
If you show a swastika in Asia most people will take it for its original meaning. Most don't know about the abuse by German Nazis. Nothing to worry for your shooting trips.
However, your concern for Nazi symbols is valid once you enter European soil. In many European countries the symbols are banned and flagging them in any way can lead to fines or harsher things.
After estimated 40 million casualties during WW2 the Russians would be the very last to put the symbols of the Nazis on anything (except the few dumb fools that exist in every country).
CZJ stands for Carl Zeiss Jena. Carl Zeiss was the scientist, Jena is (still) the city. That's what gave this East German company the name