Right, the purpose of weapons is recreation.
I've shot thousands of rounds, every single one of them for recreation. Many in my family and my wife's family have shot much more than I have, almost all for recreation. There are a few who hunt, and perhaps 0.1% of the rounds they shoot is for hunting, but the rest are all recreation.
Every single person I know who has a gun has it for either recreation, self/home defense, or both, mostly for recreation. So yeah, recreation is their primary purpose. That's not to say they can't be used for other things, but that is their primary purpose now. It wasn't always so, but it is now.