I follow the FPC closely too. As far as I can tell, they’re legit. I have not donated to them yet, however. They seems to be more into fighting unconstitutional rulings and giving legal assistance when it comes to fighting in the courts; unlike the NRA who spends their time lobbying. NRA is the swamp, no doubt, but I don’t think FPC is like that based off my observations and opinions.

Their handle on Instagram is gunpolicy if anyone is wanting to look and this is their website