You might not be able to fire blanks from this Gunblade recreation like Squall does, but that sure doesn't make the weapon any less deadly. It is, after all, still a sharp blade!
You can watch the entire creation process by AWE me in the video above, and it's a pretty interesting watch thanks to their attention to detail. Plus, you can see cool stuff like this:
EDIT: this post originally said that you might not be able to fire bullets from the Gunblade. We reworded it, since Squall's gunblade in particular doesn't fire bullets, but rather blanks.