This is The Crescent Dart from the TV-series Moon Knight on Disney. The size of the darts are roughly the same as the ones in the series, but im not 100% sure.
Obviously the coloring is up to you, but in the series they have a gold-ish color and in the comics they are silver/chrome. The symbols on these darts are also the same as the real ones, give or take, so I would say this is the best replica out there for free. (That I've found).
When it comes to print settings, I have no idea what settings to use, but this is a pretty simple 3D object so the settings shouldn't be a huge problem. Ground support is most likely needed tho.