It’s the ammo used in assault weapons.
Thanks for the clarification. My oldest son still has quite a number of wood baseball bats he used to swing when he played minor league baseball several years ago. I wonder if they could be termed “assault bats” now? I better let him know to hide his bats, the BATF is probably going to come after him and his bats.
What’s an “assault weapon?”
*Assault weapons* is simply more rhetoric.