Copying new model into existing part number

I have a model made up for a part that we are purchasing, this way we can insert it into our assemblies and graphically represent it.  There was a miscommunication and as it turns out there is already a part number and model for the same item.  The problem is that the current model (with part number assigned) is drawn very inaccurately but it is linked into dozens of higher level assemblies.  I would like to use the model that I just drew but am wondering if there is a way to essentially copy and paste the features from one model to another so that I do not have to open up and modify all of the higher level assemblies.

SolidworksParts And Features