There's a guy in my bullseye league that has been shooting bullseye for at least 30 years. He's got a custom 1911 that is so worn and blemished that it looks like it was recovered from a sunken ship. That is the grungiest looking firearm I've ever seen. Maybe he cleans the innards once in a while. Maybe not. It's great to see a gun so heavily used and still performing well. For example, the old-style beavertail is all rusty. The black icky mass that he holds onto when aiming probably has a substrate of custom grip. Either that, or he's sculpted the hand goo over the years to have a thumb rest on it. It's hard to tell. The other visible metal does have some bluing on it, but mostly black stuff that might be spray paint.
After seeing how well kept most guns are, it's interesting to find a specimen like that. It seems to be an idiosyncrasy among some bullseye shooters to make their inherently ugly guns even more ugly somehow.
Bottom line is that the guy is a pretty good shot.