Oh yeah… don’t worry about cleaning. I clean my firearms incessantly! Can’t hurt it the way you described. It’s steel! Here’s a little test for you. Take a piece of Carbon or Stainless steel. Use a scribe to make a good scratch in the steels surface. Then clean it everyday in the same fashion you would clean your barrels. Clean it TWICE what you would the barrel every day for a month. Then tell us if the scribed scratch has changed at all. Or I can save you the time because it won’t! LOL!

No, neither the throat nor the land/groove can be worn away from normal cleaning. Not with approved cleaning solution, using plastic/bronze brushes, inside even 3000+ rounds. Now, using acidic solution or with steel brushes & maybe 20,000 rounds; well, that’s a different story.