The Gut Maw is a polished brass gut-plate with a set of huge iron jaws attached to it, blessed by several generations of Butchers and passed through clan to clan. Its jaws can open wide and swallow a foe in battle, and according to Ogres, the victim passes straight through and into the Great Maw itself. There it is consumed and the life force of those ingested by the Gut Maw is passed on to bolster its wearer.[1a][2a]
Canon conflict
In 6th Edition, the huge jaws of the Gut Maw were made of silver.[1a]