.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.
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.
The stinger p9 is good with .12 gram airsoft BBs or you can use .25 gram bbs but then it will decrease the range.
All airsoft guns can shoot .12g bbs. However with more powerful guns, heavier bbs are recommended for better accuracy
6mm
Any airsoft gun. Yes
Really .25g bb's will have slightly improved accuracy, relative to the gun's power and base accuracy alone. And it depends on the weapon, what do you have?
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.
Most guns are built for .20 gram bbs, as .12 will be too light and inaccurate Some store brand airsoft guns are measured using .12g BBs because it increases the muzzle velocity due to the light weight. This is done to inflate the real performance of the airsoft gun. .12g BBs are to be used in the following kinds of guns: - Plastic Spring powered pistols - Plastic single barrel spring powered shotguns - Airsoft Grenades - Airsoft "flame throwers" Most airsoft guns use .20g BBs or heavier, not to exceed .25g for most airsoft guns (Many airsoft fields limit you to .20g BBs anyway). The heavier the BB, the more accurate it will be, but the more energy it will take to propel it. In short, use .2g BBs as a starter minimum.
airsoft uses 6mm bbs. Perhaps you are talking about weight? .20 gram is good.
you can not use metal bbs in airsoft guns at all. they are not compatible because they are both built differently.