Calling other people names was not OK in Kindergarten. Obviously, some people missed that lesson. But what would you expect from the self-righteous and self congratulatory. I cannot see how this thread belongs with the adults.
WTF kind of politically correct craphole did you go to school in? Name calling has a long and proud history on the schoolyards of the world, and in a proper "learn how to take 'yer lumps" education, where kindergarten was your initiation and training ground for the skilled and effective use of escalating name calling, culminating in knockout blows of dragging your parenting into it "Yah? Well I may be a butt-munch, but at least my pa ain't on welfare!" at which point fists would get raised and noses would get bloody.
You know, the good old days when kids didn't need safe spaces because "words."
As for the original question...
A Fudd can be seen wielding...
Shotguns with barrels longer than 24"
Anything in 30-30 or 30-06
Lever guns
Sporterized WWII milsurp bolt actions... Sporterized Enfields being a particular indulgence of the Great Canadian Fudd.
Single shot anything.
Anything who's moniker starts with "Pappy's" (name your gun) or "Gramp's" (name your gun).
And if anyone feels like getting butthurt by that list, too bad. I own examples of all of the above.
But none of them make me, or anyone who owns them, a Fudd.
Fudd is a state of mind. It's a willingness to throw other gun owners under the bus, in order to preserve some mythical, long lost (and never was) grand tradition of shooting. It's the clay shooter who thinks of anyone who can't afford a $10K double as a "F@cking peasant." The ex-mil RO who loses their sh!t on anyone who can fire a bolt action at faster than 5 rounds everyone 30 seconds for engaging in "rapid fire." The trophy hunter who sneers at anyone who's "shooting for the pot." The meat hunter who sneers at target shooters who just want to "punch holes in paper."
I could go on, but basically it's any gun owner who's so narrow minded that they can't see why someone could possibly want to own a gun for any other reason than what they themselves own guns for.
And yah, there are AR-15 Fudds too.
Fudd isn't a gun. It's a person.