They do not appear outside of this DLC.Įach manufacturer has only 1 pearlescent weapon, and each weapon type has only 1 pearlescent (with two exceptions: there are no pearlescent Assault Shotguns or Semi-Automatic Sniper Rifles). On rare occasions they can be found by opening Crimson Lance Chests, and even less commonly by the occupants of Lancers.
In the first Borderlands game, Pearlescent items are included in The Secret Armory of General Knoxx DLC, where they can be dropped by Crawmerax the Invincible, Badass Bruisers, Lance Pyros, Badass Engineers, and Drifters.