Gladius

The Gladius is a short sword used by the Adeptus Astartes. It is most common within the Ultramarine Chapter, (but is also used by the fabled Custodes) where even the rank and file Battle Brothers carry the weapon. The Gladius itself is based on the Roman blade which goes by the same name and does in fact mean Sword in Latin. It falls under the category of Power Weapons and when activated the blade is sheathed in destructive energies, but due to its lack in reach is not as potent or favoured as other Power Weapons. When not worn for the simple sake of ceremony, it makes a useful melee weapon.