Well, this is a unique piece boys and girls! I have absolutely no idea how some mad man managed to throw a wrench, a circular saw, scraps from a chainsaw and a crude pipe pistol together into ONE insane mix and some how manage to get it working. But here it is!
I hesitate to even call this a side arm due to how bulky it is. Its too short to be a proper Melee weapon and its far from a primary due to the fact that it only holds two shots. Only a mad man or some kinda soulless, jibbering monster who is only relying on shock value, speed and an indifference to getting their face blown off by a battle hardened veteran would use this thing!
More Angles shown here: