If I read you right, you want a brilliantly polished bare metal finish with no bluing?
Yes you can do this, but the metal will rust fast unless you keep a coat of rust preventing lube on it.
Even then, handling will remove the lube and the metal will start to dull and then rust over time.
If you happen to use the rifle on a humid day, you can find the metal rusting within a few hours.
The only way to keep it bright over time will be to buff it again when it starts to dull.
Bottom line, bare metal, especially mirror polished steel rusts and dulls fast.