yes
NO- they shoot large diameter plastic BBs. In general, they do not have the power of the traditional BB gun.
yes you can
yes
up then down.
No
Anything is possible but not likely with air soft. But they do hurt when they hit you. Simply don't shoot anyone with an air soft gun. Treat it like a real gun.
I don't know either
no
no there is not and it would be stupid anyways
Well, Seeing how you don't even know what kind of gun to put, you don't need to know the Velocity of any gun.
You can legally use any force necessary to preserve your own life, with in reason (equal force).
Youve got the wrong gun If u want to shoot slugs get a air rifle or a slug gun