The OJP is currently placing in some code to make non-active weapons show.
To do this we're adding in new tags to the models.
If you want your models to incorporate this new feature your going to want to add these tags in.
This is an example of what I mean.
It should be pretty obvious where I put the tags and how there orientated but if there's any doubt I'll put submitting an xsi with the new tags already placed to the OJP repository.