The second correct definition of an assault rifle is based on cosmetic features set by politicians. What makes one rifle an assault weapon, and a rifle that works exactly the same way and looks very much the same not an assault weapon? The politicians that set the cosmetic features of a rifle they deem to be an assault weapon. So this second definition is slippery and can be very broad, but boils down to some group of politicians decided that the rifles with X features are “scary”, and thus “assault weapons”.
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