No, no paintball guns work on hydrogen.
It is not a good practice to dry fire paintball markers, as it can give unnessicairy wear to the o-rings.
Depends on what kind of gun you have. I would take it to the local paintball store.
It would probably work, but it would ruin some part of your gun. You could freeze the paintballs if you wanted to. That would work just as good as a marble.
The purpose of a paintball gun is to fire paintball pellets, to mark opponents in the game of paintball.
No. Paintball barrels are .68 caliber and have relatively huge threads compared to airsoft guns. Not only would they not fit, they would not work due to the large space between the barrel and the airsoft pellet.
no
A paintball marker is a paintball gun. It is just called a marker instead of a gun.
No.
No paintball gun will work without a CO2 tank or other propellant tank. without Co2 there is nothing to push the ball out of the barrel.
In general scopes are not very useful in Paintball due to the relative inaccuracy of the Paintball itself and the tunnel vision effect of the scope. but if your Paintball gun had weaver or 3/8 rails, you can mount whatever scope (or sight, a better option) you wanted on it
No, you should use only paintball specific of air tool lubricant.