Pistols and shotguns and knives are weapons of war. So are trucks and jeeps for that matter. And, based on 911, so are commercial jets.
Let’s not forget every weapon used in assaults; hammers, bats, knives, cars, trucks, pressure cookers, pencils, pens, rocks, sharp sticks (Aliens reference) and harsh words.
Thankfully I dont own an assault rifle by the real world definition, all of mine are passive rifes.