Guest post by "Lukkai" Not to lessen TheDerangedOne's contribution of the video (thanks a lot for that) in any kind of way. But I did point out the origin of the gun a little bit earlier: http://mysteriesofthearcana.com/blog/580/?do=view#com
Truth be told: Once you gave me the hints in that comic commentary, it was relatively easy. Especially since I'd seen a documentary that included it just a few weeks prior.