If it was damaged, you should have inspected better at pickup, I go over my purchases w a fine tooth comb before I accept and sign.
If it is tooling marks,don’t worry, if it’s scratches, get some “blueing” do some touch ups and shoot her.
Ow that it’s home, and you’ve signed for her, not much u can do.
If you want to spend the coin to send to HK and have them tell you pis* up a rope, that’s on you, if it’s not massive dents in the slide, or no internal damage, go with it, blue it, and shoot her like you have the last 300 rds on the planet.
Looking forward to pics.........
Wouldn’t worry too much, I was handling my USP tactical a while back, and dropped her on concrete, left a nice mark on the slide, I swiped on a single stroke of “blueing”
And I’m fine now.
If you think it’s too far gone, bring the gun back and return it if possible, and get another.
If u can live with the scratches, or what is wrong, clean well, wipe down, “blue” her on the scratches and march forward.
Enjoy, P30L is an amazing sidearm!