The Gnawing Hunger rifle is normally picked up through drops in The Reckoning, usually around Tier 2 or 3. You can get a regular version of Gnawing Hunger through Prime Bounties, but if you want the Curated version, you're going to have to stick with replaying the Likeness of Oryx boss battle.

Is gnawing hunger a world drop?

The Gnawing Hunger is a relatively easy weapon to acquire and there's a chance you already have a few! Similar to Truthteller, this auto rifle is a world drop item. ... Every 100 materials you turn in will guarantee you a Legendary weapon, which has a chance at being the Gnawing Hunger.

What does gnawing hunger drop from?

Gnawing Hunger is a Tier III exclusive weapon, so the best bet is to unlock The Reckoning and upgrade to Tier III as soon as you can. To get Gnawing Hunger you'll want to defeat The Likeness of Oryx and you'll have a chance for a drop once he's been defeated.