Greetings stryyts,
Congratulations on your new AirPods (3rd generation)! It sounds as though you're noticing the enclosure of the right AirPod has a raised edge or portion that you can feel when running your fingernail over the AirPod. If so, this would be an issue you would want to contact Apple or the point of sale about. It's possible you may want to have the AirPods inspected in person as well. If you'd like to reach out to Apple directly, you can find their contact details via the link below.
Contact - Official Apple Support
If you'd like to visit a location, you can find the locations nearest to you and if available, schedule appointments online via the link below.
Find Locations - Apple
Take care!