Actually, you can not
yes but it is hard to put on and inacurate
It'd be fairly pointless thing to have. Shotguns in general are short range, an airsoft even more so. Scopes are to make it easier to hit things at a distance, which you won't reach anyhow.
well airsoft is for kids. only thing good about airsoft is price and silence but other than that theyre boring and useless other than for training to use the real thing not a toy.
Yes, there are many places that are either exclusive airsoft fields or have an airsoft day at paintball fields.
No.
no
The only thing is who is the manufacturer?
No such thing as a 22 Shotgun.
In the UK you need a licence to own a shotgun,
No, there are two main types of Soviet side mounts, the AK and the SVD, a reasonable seller will have the type of the mount clearly visible so you don't make a mistake. But airsoft mounts are usually out of spec and nobody will guarantee you that the mount that was intended for a real rifle will fit your airsoft rifle.
They perform the same function, but, they are not the same.
It can pretty much take the same thing other airsoft guns, .12 gram, .20 gram and so on.