Rubber ring aroud the GoPro 3+ lens

Where can I get the protective circular rubber piece that goes around the lens on a GoPro 3+ camera. It goes around the front of the lens, located on the front of the camera housing?

I called GoPro and they don't have a part number for it, but they are trying to get them for me.

If anyone has any damaged GoPro cameras or box of parts with this rubber ring, or any other GoPro parts they want to sell, please contract me.

Any help would be greatly appreciated.