if the gun normally uses green gas then yes but you still need an adapter and lubricant. you can get both of these on evike.com or airsoftmegastore.com
NO! Absolutely not!
It doesn't make a difference whether your using propane or green gas I'm not sure why they call green gas green gas because all it is propane with silicon oil in it but if you buy a propane adapter with an oil port you basically made green gas.
Contact the maker for correct instructions
No, only guns that are designed for propane should use it.
Yes, and it is highly recommended to wear airsoft glasses or a paintball mask whilst using airsoft equipment.
An Airsoft gun
yes it does
A pump airsoft gun is a gun that has to be pumped every time before shooting. Ex. Airsoft shotgun
Airsoft guns are safe because unlike real guns they can't kill you or even pierce your skin...under normal circumstances.
No
If he mature enough and has a safe environment were he/she can conduct airsoft games without violating property laws or making anyone angry.
No