Very nice! The cross is from the knights of Saint John Hospitalable (sp) The four arms of the cross represent the four Cardinal Values: prudence, justice, fortitude, and temperance.
I have seen a few German gun with the same cross. I use to think of The cross associated with German military until a German officer set me straight. He had a Merkel o/u with the cross in gold on top rib and on the trigger guard.
But I am sure if you go on line, and do a search I would expect you’ll find a ton of information on the meaning of the 8 pointed cross. But I’ll stick to the 4 cardinal values.
