Possible to edit LAU-131 3D model?

[EasyEB]

Would it be possible to edit or replace the current LAU-131 3D model? I’d like to make the longer version of it.

[razo+r]

Edit no, replace yes.

[EasyEB]

2 hours ago, razo+r said:

Edit no, replace yes.

Would I need to replace the model only or create a whole new weapon?

[razo+r]

I think both can be done.