Currently Using/Learning Unity

I just Made my First Rexium Furry Avatar for Vrchat and it was pretty hard...

When i tried using VRCFury (a Tool for vrchat) to attach the Clothing to the Avatar and it didnt work... so i needed to Take every single bone from the Clothing and put it in my Avatar bones.

Then it worked! now im working on Attaching a Gun but i think its too big in File size...