Depends on what state or country you live in.
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 there not
No.
No
BB guns are legal in all states. However some local laws have different restrictions on the use of BB guns.
It is legal to own a BB gun in Champaign, but it is illegal to use one within the city.
Every State sells BB guns, just not all locations within the state sell them.