That’s a hot topic of debate and the ban was not just on manufacturing as you claimed. Wiki must have missed that for you.
The bill specifically changed the federal criminal code "to prohibit the manufacture, transfer, or possession of a semiautomatic assault weapon," however, it specified which semiautomatic assault weapons were included.
The bill banned more than a dozen specific firearms and certain features on guns, but because there are so many modifications that can be made on weapons and the fact that it did not outright ban all semiautomatic weapons, many such guns continued to be legally used.
https://abcnews.go.com/US/understanding-1994-assault-weapons-ban-ended/story?id=65546858