Parts in IK Chains dont change their position/rotation, how would i get it anyways

im trying to simply set the rotation of a sword to the players RightHand, but since the RightHand is part of an ik chain, its cframe and rotation/position doesnt change, how would i go about this?

(no viewmodels i set the camera to an attachment on the eyes and made the head move up n down)

I never encountered that thing on server before lol