Depending upon what kind of finish and durability that you want. This depending on the amount of carry and etc. And also the amount that you want to spend on it.
Probably one of the most durable finishes out there is the NP-3 Finish by ROBAR. It looks like a flat stainless or brushed chrome finish. But it contains thousands a small Teflon particles in the finish material. And would last for a long long time even being carried regularly.
The other good finish that I like is the Black T Finish. It is almost black in color and does not reflect light since it is a duller finish.
The Constitution is not an instrument for the Government to restrain the people. It is an instrument for the people to restrain the Government!
“Americans have the right and advantage of being armed. Unlike the people of other countries, whose leaders are afraid to trust them with arms.”
James Madison. Author of the 2nd Amendment