How do I weld both arms to the handle of a gun?

I need help doing this. I know you need welds and CFrame, but it all seems so complex! Can someone please help me?

I won't write any code but I'll give you a step by step instruction on how to do it.

1. Add a "Weld" instant to the gun you want to be welded to the arm. 2.Set the Part0 property of the "Weld" to the gun object 3.Set the Part1 property of the "Weld" to the arm object.

That would work. If I just give you the code, you wouldn't learn anything, it's better for you to figure it out your self while I guide you.