Is the HK's HE treatment mixed with the bluing of the gun? Why do they say not to use Flitz in blued guns? would it strip the color? I forgot the link or where I saw it but there was a guy who shared his how to strip (buffed out via sandpaper if I remember correctly) the blue and had it painted gold. It turned out pretty nice IMO. If it strips the color and not damage the HE treatment that would be a better alternative than using sandpaper.
Maybe try Flitz, Mother's, or other Stainless Steel cleaning products.
Never use any buffer or mechanical tools. Apply the cleaning product to a cotton patch and a bit of rubbing, if it doesn't work, I would just live with it.
Let us know what works and what doesn't.
Agreed, I would be much happier with it as is, rather than marring the finish. Using a metal polish makes me think I would affect the current low sheen / matte looking finish. I think I might try to see what HK says. They must talk about SS slide finish somewhere out there...
Yes, if you use any polishing product, it may take away the matte finish and make it shiny. Not sure that you can do anything with that easily.
Bead blasting is an option, but the slide would have to be disassembled, and the sights likely taken off.
Keep trying a little more and a little more Hoppes and cleaning but still working on it. Still trying to find a good solution somewhere out there on the interwebs...
If you run your fingernail over the area, is it smooth, or pitted?
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It's not smooth. Seems to catch a tiny bit. So its eaither on the flat surface or in a scratch filling it.
Is there anything safe to leave on it for a little while to soak in and see if it will help that will not mar the finish?
Pitting didn't seem to be the case. I'm probably explaining it wrong.Will get a better close up view and try cleaning again. Thanks.