Guessing the question is "which is the least worst decision?"
Jetski? Uh save up for a boat instead imho. Jetski's are chill for solo sessions though.
The other one sounds like an assault rifle. Just get a pistol or find a place where to buy some fully-autos. Regardless, I wouldn't actually want to use an AR in practice so you'd be spending money on decoration.
Unless you're hunting. Not a fan of hunting.
^ life story given yw.

