“How so?? “
I don’t think having to reposition the gun and manually feed the next bullet qualifies it as an ‘assault’ rifle.
So cool that if someone manufactured an updated model today (fill the reservoirs at the gas station air pumps) I’d buy one today.
Saw a TV show that featured this air rifle once and it was impressive with a range over 50 feet.
I think the definition has to take into account the era and technology it is competing against. Once upon a time, matchlocks were assault rifles. Then flintlocks. Then percussion caps.