I do believe, unless I am wrong, the only sizes there are for 6mm Airsoft bullets, are the .12g .20g .25g .28g .33g and .38g, Though I think your talking about the AK47 model sniper that supposedly shoots about 470fps with 1.2. I believe that was a typo, and that it should have been .12g which would be about correct with the consistency of the AEG's price, range, and brand.
velocity 470 fps 1.2g bbs, 365 fps 2.2g bbs.
I did research on the 2.2 bb and only found a .22 metal bb, so that "might" be what it is referencing to is the metal bb's.
they do exist but not sure where you can buy them. to see them you can go to kapowwee but they dont sell them
I do not think they exist
Airsoft bbs are made up of plastic and are 6mm in diameter and are .24 cal, BBs however are metal and are .177 cal (4.5mm)
Type recommended by the maker of the airsoft.
The stinger p9 is good with .12 gram airsoft BBs or you can use .25 gram bbs but then it will decrease the range.
you can not use metal bbs in airsoft guns at all. they are not compatible because they are both built differently.
no
yes they are very accurate
.25 Airsoft bbs can be good. Their weight is very good for accuracy and helps for a harder hit from the bbs. However, no bb is good if they are not high polish. Companies like Madbull and Matrix make good .25 bbs.
No
no
Yes
NO.
standard 6mm plastic bbs.