Charging handle blemish

Hello everybody just purchased a brand new Carbine vector from my local gun store about a week ago. While I was holding the rifle at the store I noticed that the charging handle had a round blemish with discoloration right in the center of it but didn't think much of it at the time. However, I now regret purchasing it because that blemish/scratch is really bothering me. Is there any way I can remove the mark or do I have to just live with it? I'm starting to regret buying it that way. What do you guys think?

photo?

You can try contacting KRISS Customer Service.