Firing two large-mag Berettas at once will lower accuracy and increase load times. On the bright side, you'll get to fire two large-mag Berettas at once.
It has been engraved with skeletons, flowers and serpents.That's why Huxley is doing the heavy lifting, all we have to is nudge her forward... - The Serpent and The Truth Seeker, Part 2

This item only drops in states between 0% and 100% (Factory New to Battle-Scarred).