Mossberg Chainsaw Pump Shotgun Posted January 19, 2011 in Shotguns by Steve Johnson with 22 CommentsTags: Mossberg, shooting, shotgun, shotguns I have not yet made it to the Mossberg booth at SHOT, but fellow blogger MJM did. Coming to a zombie movie near you! MJM has a great photo of it over at his blog. I will be sure to check it out tomorrow. Win the new Springfield Armory XD-9 Mod.2 TFB's first ever gun giveaway.