Precipitation and whatever other corrosive environmental conditions don't just land on external gun part surfaces and stay put. It drips, seeps and trickles its way into the inner mechanisms too. So, when a firearm is advertised as being stainless steel, I know the outside parts are stainless, but what about the inside parts like the trigger group, bolt parts, etc.? Whenever I've asked this question at gunshows, everyone I've asked basically has a shoulder shrug for answer. Maybe I've been asking the wrong people. Is there such a thing as a stainless steel firearm that is entirely stainless steel? Thanks in advance for the input.