Holographic sight implementation in UE4

Hey guys,
I just bought the silver hi fi weapons for my game as i do not know how to make my own weapons (cannot as I have no modelling skill) and well there isn’t any holographic sight implemented, so is there any way of getting a sight into that weapon without having to use maya or something like that?

this one is nice

this one is simpler but also nice.

i’ve been having alignment issues with both, but it’s a start