Armored Craw Worms are one of the new enemies featured in The Secret Armory of General Knoxx. They only appears in Crawmerax's Lair location, and they tend to be higher level than the player (Above level 69).
Armored Crab Worms have the same attacks as an ordinary crab worm, and spit purple globs that are slightly more powerful than a Green Craw Worm's are. Exploit their slow movement speed. Any character can outrun an Armored Worm.
- Regardless of the game mode, their name remains unchanged.