It all depends on the model of the BB gun. There are over 300 different modal BB guns. Which one do you want to scope.
on top of the scope is the brightness and on/off switch. the top of that comes off when you twist it and the you put your batteries in there
no
you can put a scope on almost any gun, but why?
Pretty much outside the scope of a hobbyist
Sling, Bypod, Scope, Flash light, Laser.
The Internal Magazine is the compartment that holds the BB's ready to be fired. It usually comes out of the gun and you put the BB's into it then put it back into the gun.
The scope on the R73 is a fake scope. It really a see through Hopper. You can not replace it with a real scope. You have to use it to fill the gun with BB's.
The gun must be designed to shoot both BB's or Pellets. If it is not designed to do so then it is not recommended.
It all depends on the scope rail. The scope is designed to fit on a metal rail. If the rail is plastic it will come loose while shooting.
Different type of recoil impulse
It all depends on the model of the BB gun...
What condition is it in?