How do i make my gun point at the players camera

i suppose you already know what i mean by the title but if you dont ill tell so what i want to do is to make my gun point at the players camera like arsenal and other FPS games knowing mine isnt a FPS game but it got guns so idk how to do that so can you all tell me how to do that?

i dont understand anything from it please tell me how do i do it but without making the viewmodel?