Seat that gives tool when mounted and removes tool when dismounted?

Hello everyone! I am looking for a script that will give a player a tool when they sit in a seat and removes the tool once they exit the seat. I am doing this for a concept of a tank "machine gunner" who will be given a weapon when they sit in the machine gunner seat and will be able to shoot through a small hole in front of them. Then whenever they exit the seat, the tool I previously mentioned shall be removed from their backpack whilst keeping whatever tools they had in their backpack prior to sitting in the machine gunner position. Any help shall be greatly appreciated, and I promise to give credit in the game description ^^