Make arms follow camera?

Hey, so I tweaked it around and I can actually see the arms, they just aren’t in the right orientation. I used this code to try and get it working:

game.Workspace.Arms.PrimaryPart.Orientation = game.Workspace.CurrentCamera.CFrame.LookVector

It runs this every RenderStepped

The problem is, the arms go crazy and spin around.

Okay I got it to look like this, I think I can make it work from here.