Look up who owns Hi-Point.
MKS is a holding company used to funnel hipoint money into other investments while limiting liability as much as possible mixing liability. May be tax reasons also. At least it seems from my research Hi-Point predated MKSSUPPLY and is the origin of all their holdings/financing. They own a few things and it is a little confusing. I don't think any of it is public so records are a little scant.
$0 of an NRA membership goes to legislative action or court battles. Not a dime. Only money contributed to the NRA-ILA or NRA-PVF.
Of course, you could just donate to the Second Amendment Foundation
I was feeling pretty good, then I looked around and realized I am not swimming or on fire.