Which are the standard method to use for Vehicle Passengers?

The goal here is a vehicle with three spots, 1 driver which will possess the pawn, a passenger and a mounted machine gun.
The third pawn will control the machine gun.

I’m wondering if there is a standard way to approach this problem, if there is a built-it tool on UE4 for vehicle passengers , how an actor will possess a component (the machine gun) on an actor already possessed.

Thanks in advance.