"And some gun retailers are already stepping up by refusing to finalize a purchase without a complete background check, or by refraining from selling semi-automatic weapons or high-capacity magazines. And I hope that more retailers and more manufacturers join them — because they should care as much as anybody about a product that now kills almost as many Americans as car accidents."
January 1, 1970
https://en.wikiquote.org/wiki/High-capacity_magazine_ban