This is the heart of the matter, right here. I can't tell you how many times I've made the point to disbelieving libs that the gun-rights movement is really grassroots... that the NRA doesn't wield its considerable power due to industry money (the industry isn't that rich, really), but due to individual memberships from men and women scattered across the country.
The NRA really does represent a large number of people, and these people really do have strong opinions on gun control.
That is what makes the NRA rather unique in the lobbying field.
The reason why they say that the gun industry must be fully funding the NRA, is because just about every other large lobbying group is funded by large corporate or non profit groups.
There aren’t any lobbyists that come from groups like the NRA. In Washington they are unique.