That USP might have 1,000 rounds on, doubt it though, actually it's pretty clean, it's not even broke in yet. (Love the Orange extractor, had a USP .40sw with one)
I have a first year USP .45 that's open carried, I don't dry fire since it don't seem to help me with my live fire drills, so the trigger group, and firing pin is untouched, S/A breaks clean at 4.4 lbs.
Enjoy your USP, you won't ever wear it out.
Anybody wanna buy a USP barrel???