User blog comment:Willbachbakal/Co-Op Weapons/@comment-3195894-20110810181453/@comment-1330314-20110810182341

That's what I had in mind, although you'd have to have six different spots per weapon, since there are six upgrades to choose from in any combination. However, considering the weapons in this section are supposed to be large enough to be wielded by a Big Sister, it'd be possible to make every cosmetic upgrade fit without any of them clipping through each other and whatnot.