In this "Automatic rail gun" , we can create a gun through which we can fire it from 1 kilometres away. Working is simple: we will wear a suit and then we will and we will control it and shoot it without even going in the battlefield.( It can save our soldiers) If I got the permission from government then we can even put the machine gun on it , like torrent. Now I'm going to use a toy gun but still mechanism will be the same.