Chainswords are specialized melee weapons commonly found in the Warhammer 40,000 universe. They feature a blade with a series of teeth that rotate, allowing them to cut through armor and flesh with ease. The design combines elements of a sword and a chainsaw, making them effective in close combat situations. These weapons are primarily used by the Adeptus Astartes, also known as Space Marines, and other factions within the Warhammer 40,000 lore. Chainswords are often seen as symbols of honor and bravery, reflecting the brutal nature of warfare in this dystopian future.