if you are buying from Walmart (which i dont reccomend, it jams your gun) i believe the smallest is like a 200 round bottle. but on airsoftgi.com they have bbs in packages of 500 at the smallest, but they are better made and it there about the same price
Airsoft does not have gauges (those are for actual shot-guns) but BB's do come in sizes. The sizes are known in mm (mili-meters) and they range anywhere from .12 to about .48
yes, most green airsoft bb's are biodigradable
No. Metal bb's will not work in airsoft guns.
bb
No, as long you don't use metal BB's, any plastic, 6mm airsoft BB's are good to use.
If you are talking about airsoft bb's, then yes. Most bb's fall between .12 grams and .30 grams, and a 20 gram airsoft bb wouldn't work well.
almost every gun for airsoft uses a 6mm (milimeter) BB. try that.
First of all you need to state where you live. The law is different, depending on the country where you live. Are you asking about metal BB's or airsoft BB's?
BB's for air guns (NOT airsoft) only come in one size .175 commonly referred to as .177 caliber. If you want to know about airsoft BB's then you need to put the question in the "Airsoft category."
It all depends on the country where you live. Most places require you to be at least 18 for a BB gun. Airsoft may be different.
Without the weight of the airsoft BB, it is impossible to answer this question as Force is affected by the mass of the projectile.
FPS depends on the type of bb used, quality of the bb, weight of the bb, and the chronograph. On top of that, it depends what shotgun it is! There are many, many airsoft shotguns out there.