It's the first Collector's Edition upgrade I got because I wanted the Revolver for it's look, but yeah it looked small as hell on my Hyur. Even smaller on Miqo'te and Lalafells. The blade needs to be a bit longer since when I hold it unsheathed, the blade looks tiny. Squall is like 5'8 and the Gunblade is depicted to be at least from his feet to his hip in a lot of material. Sucks about the chain too but I think they couldn't just program the chain moving physics for whatever reason, so I'm not gonna ask for that.

Just make it bigger.