It all depends on the country and location where you live.
A little harder but Yes they are. However spring powered air guns are usually stronger than C02 air powered guns. Spring powered guns are single shot and must be reloaded between shots where as C02 usually uses a clip with pellets or BB and is semi automatic. ( Generally speaking but not always)
Pellet guns are more powerful. They are stronger because they use a CO2 Gas, whil BB guns are spring-powered.
bb guns r illegal in North Carolina
Yes, of course it is illegal to bring BB guns on planes.
By the local ordinance in Baltimore city are BB guns illegal
BB guns and airsoft guns are legal, but it may be illegal to transport them, especially to handle them if they are looking like 'real' guns.
No
No
no there not
No.
yes because they look real and threes a story to it but i think if you have a full gun licenced you can get only a spring airsoft gun no gas or electric airsoft guns which means a bb gun
No