10+ rd pistol mags in WA state

Hey I’m sorry if someone’s asked this before but I couldn’t find it, I was wondering if anyone knows if I would get in trouble for bringing “high capacity” magazine into the state through airplane or if they would even be checked? I’m flying into Washington through delta and it seems like they only inspect the weapon where you are leaving from and my 9mm doesn’t even have an option to have mags less than 10 rounds.