Attach / Detach component

At the end of the montage I need the mirror to be detached from the hand socket, but everything i tried so far doesn’t work.

If I attach the object to the hand socked, once i perform the montage that is supposedly going to hide said object, no matter what movement I perform, the character will stop moving correctly, even jumping off when toggling to crouch…

Anyone can help?

why not just attach the component to a different component, or destroy the component after use?

I tried that, but it seems to not be working…