ADS Script not working?

I'm working on this ADS System i have everything, I made it to where if the player clicks The right button on the mouse it will aim. But the problem i'm having is that it won't go back to it's normal position after you let go. Here is how my code looks like, I shortened it because it was quite long.

mouse.Button2Down:connect(function(Aim)
(CFrame Code, That moves the arms)
end)

mouse.Button2Up:connect(function(unAim)
(CFrame code, that moves them back to their position.)
end)

Can someone please help me?