Afraid you are playing into the lefts word game. An AR is a modern sporting rifle. Attaching “assault” to it has a negative connation that is designed to make it “evil”
When I was in the national guard infantry in the 80s we used m16 assault rifles. The ar15 is like a civilian varint of the m16 ehich is why I call it sn assault rifle. It is a techincal term decades older than the PC term assault weapon which was codified around 2003 in the so called assault eeapons ban. Assault rifle is not a PC term. It predates this newspeak crap.