Overall, the quality of a standard .20g BB is usually substantially higher than that of a .12g.
However, if you are just plinking with a very-low end (cheap) gun, you shouldn't worry about using a .12g BB.
point 12 is more powerful, but point 2 is more accurate
The stinger p9 is good with .12 gram airsoft BBs or you can use .25 gram bbs but then it will decrease the range.
They do not make 30 gram BB's. Although, the do make .3 gram BB's which is what I think you meant. Almost every online airsoft store sells them. I love Airsoft GI (Link below) because they have amazing customer service and quick order processing. I highly reccommend you buy from them.
I do not know how powerful that gun is but for a sniper you usually want a heavier gram round such as .24, or .26 I believe that is as high as they go.
airsoft uses 6mm bbs. Perhaps you are talking about weight? .20 gram is good.
Any airsoft gun can use .12s but they will damage them in the long run. You should always use .2s and up. 200- 300fps= .2 300- 350fps= .23 350-400 = .25 and so on.
Light .18 gram bbs.
It can pretty much take the same thing other airsoft guns, .12 gram, .20 gram and so on.
6mm of either .12 or .20 gram bbs. 6mm of either .12 or .20 gram bbs.
I think you mean grams. They come generally in .12 gram, .20 gram, .25 gram .28 gram and .30 gram and a few higher grams than that. Grams are a weight measurement so that should answer your question. Most people use .20 grams in an AEG and .28 or .30 for sniper rifles. 24 caliber I believe means 6mm bbs which is the standard size bb for airsoft.
yes
Yes, every airsoft gun can fire any gram of BB, although .12g BBs wont be that effective in a sniper, try .25g or even .3g.
All airsoft guns usually use 6mm BBs, usually made of plastic, and come in a variety of different weights (.12 grams, .20 grams, .25 grams, .28 grams). Normally .12 gram BBs are the cheapest, and are good for most airsoft guns, although airsoft guns that shoot at higher velocities should use .20 or .25 gram BBs, as they will shoot straighter.