That vid is pretty dumb lol Of course the gun is going to shoot, it's an airsoft gun.........lol It's different when you have a real gun because the dirt and snow gets into the internal mechanisms. Airsoft guns have a gearbox and it's pretty hard for the stuff to get into the GB.
The car part was impressive though.
As far as the durability of my gun.....It's made of nylon polymer fiber glass stuff, so I'm sure it's durable. I wouldn't want to try that stuff to my baby though.......lol