If I rent a gun, will it include the battery or I'll have to pay for it separately?

1 batery is included with the rent of a rifle!

Dont forget a scarf...or your neck will get hit

You have the battery but no bb's

The battery is included

I have all the equipment, all I need is the rifle, I have, a barrel cover, mask, vest, gloves etc.

If you rent, you rent the mask an gun, extra items cost more to rent.