Ol' Rosie is a unique laser weapon manufactured by Maliwan. It is obtained from the mission The Beginning of the End, but only in True Vault Hunter and Ultimate Vault Hunter modes.

Special Weapon Effects

Every thorn has its rose. – Increased continuous damage bonus.

Usage & Description

Due to its high continuous damage bonus, it is recommended that Ol' Rosie be fired in long bursts, perhaps even expending the entire magazine.


  • Ol' Rosie spawns with fixed parts and prefix. Every legitimately obtained Ol' Rosie will have the "Thorny" prefix.
    • In the game's coding it is referred to as "GD_Cork_Weap_Lasers.Name.Prefix.Prefix_Rosie_Thorns".
  • A hotfix on December 2, 2014 lowered the continuous damage bonus of Ol' Rosie from +518% to +368%.
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