I'm saying. If you're not LE or a class 3 dealer or owns a registered lower, its illegal to even buy them unless you don't have a rifle.
Untrue. You can buy FA trigger packs all day long and you don't have to be LE. If it was illegal then when you place your orders online, it would state that it can only be purchased by LE only or you have to show proof you are LE. If you need more help on this, email Adam Webber at HKparts.net and talk with him about it. He is the owner and will explain it to you. I myself thought the same thing. Adam cleared it up for me.