Honestly stingers don't really matter to the US inventory we don't even have an MOS to a job for operating of a man Portable anti-aircraft weapon.and it should be known that the javelin can actually engage the same targets as the stinger. How do I know this, javelin qualified in 2001. Yes it's easier to use a stinger to walk on a fast mover or a helicopter. It is possible with a javelin and if you lock it will hit it.