How to get rid of the broken cube?

How to get rid of the broken cube?

if its an individual object… right click it and press delete…

if its a part of the gun object, put it in edit mode, select what you want to delete and press… erm… delete

I think that’s the texture space that you enabled for some reason.
In case you did it accidentally, it should be there in Object panel -> Display tab :

Looks like a bounding box for Texture Space, which can be turned off in Properties Panel under Object> Display>Texture Space


managed to solved it and thanks for the replies=)

manage to solved it, thanks!!=)