Rusty detent - Radian Weapons Talon Ambidextrous Safety Selector 2-Lever KIT

I own several of these. Great safety selector. Sadly, my most recent one came with a rusty detent. Radian is too busy to pick up the phone, answer emails, or even reply in the live chat box. As soon as customer service goes out the window, I stop buying from a company. I can easily replace the detent on my own dime, but shouldn't have to. I will try a brand than gets back to it's long term customers next time.