The item is a very rare Forgeworld Out of Production "Doomglaive" Close Combat Arm, a specialist weapon of the Grey Knights Dreadnoughts. The parts are new and unused, still in their original packaging. The Combat-arm has a large Doomglaive blade and an additional heavy flamer.

The Nemesis Doomglaive is a large Nemesis Force Weapon used by the Doomglaive Dreadnoughts of the Grey Knights Chapter. These weapons are shaped like a massive, curved single-edged sword and are psychically attuned to the Grey Knight warrior entombed within the Dreadnought. The weapon features a cunningly articulated mounting system and a long blade and is capable of devastating scything strikes, perfect for use against hordes of Chaos Daemons.