This was made by the same YouTube channel that made Cloud's Buster Sword and Sephiroth's Masamune but by a different team of blacksmiths. This is their version of Squall's gunblade. Pretty awesome, even if it doesn't really fire bullets. They still crafted it so the trigger and hammer work.

It's a pretty neat piece. However, it's slightly smaller/shorter than I would have imagined the gunblade.