Where does this crapola come from that a assault weapon can only defined as a fully automatic weapon. Rather than its civilian semi-legitimate counter part in a semi-automatic that fires only one round per press of the Trigger?
As the real danger and lethality of an assault rifle ( 0r even a pistol ) comes from its huge magazine that can keep firing and firing from 10-30 or more times.
Even in US military use, and other militarizes in the world, the use of a fully automatic shoulder fired weapon is discouraged. Simply because the recoil of such weapons make the accurate aim of such shoulder fired weapons impossible after the first or second shot. And its why most militaries in the world have dropped their former standards of arming their soldiers with larger caliber weapons in the 6.5 mm to 8 mm class that have far longer range and lethality. In favor of 5.5 mm weapons with shorter ranges that can at least be accurately hand held and fire 2 round bursts. As that is the way most US soldiers are trained to use their fully automatic AR-15 rifles in combat situations. By turning their selector switch to 2 round bursts.
Prior to VietNam when the standard shoulder fired weapon was a 7.62 Nato round, it was proved, after the first round, any accurate aim was lost after the first round in any fully automatic mode. As the other criteria becomes, when a fully automatic weapon is used, they usually have a rate of fire of some 500 rounds per minute. Or round numbers 10 shots per second. Which means you could empty a 30 round clip in 3 seconds, with 28 or 29 of those shots coming out in an a un aimed spray and more likely to hit the ceiling or the floor.
Which is not to say there is no legitimate military use of a heavy machine gun, mounted on a tripod, water cooled, and weighing over 70 pounds. Maybe the dream of every nutty gun using psychotic, but at least those heavy machine guns are heavily regulated and not sold on the streets to any legitimate or illegitimate guns users like candy on the streets of America. As not even the NRA is that nutty. But the NRA stand four square for putting automatic or semi-automatic weapons with 30 round clips into the hands the every Psychotic without even a background check.