They are not illegal to make. Not sure where your info is from but PayPal would like their $2.5k. Making a sear is completely federally legal in the US. It is

They are not illegal to make. Not sure where your info is from but PayPal would like their $2.5k. Making a sear is completely federally legal in the US. It is however illegal to make a sear featuring support for automatic or select fire, unless you have the appropriate licensing to manufacture. This guy built sears for a 3D printed gun. I think he will be okay.