Making custom weapons upgradeable

[TimBob12]

Hi there,

I have a couple of weapons that I want to be upgradeable and I have set proporties. But when I try and open them on a workbench they don't actually appear.

 

I tried following the tutorial but that seems to be for creating a custom crystal which I don't want to do.

 

I just can't work it out.

 

Thanks

 

TB12