CO2 cartridges? It depends on the weapon. Check your user manual.
Actual cartridges? Oh god no. Unless you want to have a live round explode in your face.
Co2 comes out of a bb gun because of the compressed co2 cartridges that are used to propel the bb itself. Additionally, the bb gun that does not use co2 cartridges just doesnt shoot out co2, but air in general.
Not in the United States
I also have an 8G BB gun and I use the 8G N20 Seltzer cartridges in it and have had no problem. I also use "Crosman Pellgun oil" Or "RWS oil." I put a drop on the tip of the cartridge before I insert it into the pistol. This keep the pistol lubricated internally when the tip gets punctured. C02 cartridges have oil in them N20 cartridges do not.
No.
Yes it is required.
You need to Identify the make and model of the BB gun in order to get an answer not the serial number
Your parents will decide.
Yes you do.
If its a BB Gun, Then Yes.
7.62x39 cartridges
It depends on the model
BB gun. Fires a round BB.