[Ohsheepdog01]

All of my guns have DLC or black stainless finish. Not big on stainless guns especially when they're worn against your body. I've had issues with several brands rusting on the body side of the slide over the years. It's just easier to have a finished or coated slide.
Here's a picture of my very well worn PM9 with the DLC finish. Never had an issue with rust. Even on the sights.