Every weapon is an assault weapon. That is the entire point of a weapon, even if used for defense. Making the term a political exercise is a futile gesture of ignorance.
I carried an auto-knife in combat. A black ebony handle housing a blackened blade 2 1/2" wide, 8" long, total weight 2.2 lbs., a Toledo type steel. Place it up against the opponent at the center of his back, pull the trigger back with a light touch of the thumb, press the trigger with a second lite touch, and the internal steel spring releases the blade from the head of the handle at 200 psi right through the spine. The man doesn't know he's dead and neither does the devil, before slitting his throat for insurance. An assault knife. Excellent for removing a sentry at night. A surprise during hand to hand. It takes about 2-2 1/2lbs of psi to stab a human manually with a sharp pointed knife. A bit more if it is dull. Push the trigger forward, the blade slides back into the housing. Push down the trigger after pulling a slide to load the spring, the blade locks in place, all done with the thumb.
This knife was my Dad's. He used it during WWII. He bought it from a custom knife maker in Brooklyn. He bought it at age 12, for self protection. It cost him $2.80, two weeks of wages from his after school job in a shoe store bringing up shoes and bringing them back to the basement storage area as the customers requested them from salesmen for trying on. 1931. Better than any combat knife issued by the US Army in any war. I still have it, but don't carry it without reason. NYC law limits a pocket knife blade to 3 1/2". Sharp enough to slice a clove of garlic paper thin. Triggered stilettos are popular with European criminals. Yes, this is a stiletto.