I only said that I love Borderlands, it doesn't mean that I just copy some gun right off it. This looks different from the pics you linked. My revolver are slimmer, the scope are based off those from real world, and the bayonet have holes. And I did this design before I played Borderlands.
Holy crap this is badass. The bayonet almost makes it look like the Brute Spiker from Halo. But then again I'm such a Halo nerd that I tend to draw parallels between any gun and some other gun from Halo. You could seriously pistol-whip someone with this blade!