almost every gun for airsoft uses a 6mm (milimeter) BB. try that.
no it isn't but it has very hard plastic
No. It is considerably lighter than it's real steel counterpart.
The M4 3181 AEG is always nice. Here's a link: http://www.hobbytron.com/AirsoftAssaultRifleGunAEGWAA10CH3181.html
The M4 3181 AEG is always nice. Here's a link: http://www.hobbytron.com/AirsoftAssaultRifleGunAEGWAA10CH3181.html
It's about 350. Has very good range.
I would stick to the 8.4v Ni-MH one it comes with and buy a duplicate because if you use something stronger you'll fry the plastic gearbox.
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.
yess
just 3 shot shotgun shells
It depends on which companies make the m4 you have, but generally companies stick to the same dimentions for magazines for the m4/m16 family.
m4 there are spare parts
the lightest you can find