It all depends on the model, anywhere from $15 to $200
BB guns can cost anywhere from $12 cheap single shot pistols to $300 electric automatics. If you just wanted to pick up a BB gun from a sporting goods store, it is about $30.
A regular BB gun can not shoot air-soft pellets. BB guns shoot a .175 BB. Air guns shoot a much larger 6MM BB.
You Can't. Good BB guns cost. You might find some used ones on Craigslist.
Actually a BB gun is an air gun. But an air gun also includes pellet guns and rifles. BB guns are the bottom end of the air gun family. Pellet guns are more accurate than BB guns and they usually cost more.
Simple. No one makes them for BB guns.
If you are asking about Airsoft BB shot in a regular BB gun that shoots metal BB, then the answer is NO. Real BB guns fire at a much higher rate than most Airsoft BB guns. The plastic BB could disintegrate and become flying pieces of Plastic.
No. Some BB guns use a magnet to hold the BB in place until it is fired
BB guns are legal in California
There are bio degradable bb's for Airsoft guns but not for real BB guns.
$200 for a BB gun
about $5
BB guns are legal in all states. However some local laws have different restrictions on the use of BB guns.