I've seen them on the shelves here in VA. But they don't stock as many of the 3 1/2 inch as they do 3 and 2 3/4. Having shot a number of deer with slugs, I don't see why you would want or need a 3 1/2. There isn't a deer alive that will survive being hit in the vitals with a 3 or a 2 3/4 slug.

And, anyone claiming to be "recoil happy" probably doesn't have a lot of actual hunting and shooting experience. Heavy recoil leads to sloppy shooting especially on the second shot.