- " The ulaks had first been forged by the ancient monks, used in defense of honor."
- — Riddick musing about ulaks on Aguerra Prime. .
Ulaks are curved single-edged knives with serrated edges typically used in tandem.
These "swingblades" are capable of slicing and stabbing positions, and are designed to compliment the natural motions of a person's arms and hands in close combat. The serrated edge is used for blocking other bladed weapons.