Borderlands 4’s massive arsenal of legendary gear is one of the biggest draws for players, and shotguns in particular are fan favorites for close-quarters chaos. Among all the legendary shotguns available, the Hot Slugger stands out for its unique incendiary splash damage and free swap-reload mechanic, making it a must-have for anyone running splash or melee-focused builds. If you’ve been searching for the Borderlands 4 Hot Slugger location, this guide breaks down exactly where to find it, how to farm it consistently, and what makes it worth the grind.
Exact Borderlands 4 Hot Slugger Location and Unlock Requirements
Unlike many legendary weapons that are random world drops, the Hot Slugger only drops from one specific named boss in the game, so you don’t have to waste hours killing random mobs hoping for a lucky drop. The Borderlands 4 Hot Slugger location is tied to Scorched Rex, a giant fire-skag boss found deep in the Cinder Mine dungeon in the Ashfall Peaks endgame zone. You won’t be able to access this boss until you complete the main story mission “Cinderfall Uprising”, so don’t bother heading to Ashfall Peaks before you wrap up the main campaign. Make sure you clear all minor enemies in the dungeon before approaching Rex, or he'll call in backup that makes the fight 2x harder. You also need to set your game to Mayhem Level 3 or higher for the legendary variant to drop; any lower difficulty will only reward you with blue or purple versions of regular shotguns, not the Hot Slugger.
How to Farm the Hot Slugger Consistently
Once you have access to Scorched Rex, farming the Hot Slugger is pretty straightforward if you stick to a simple routine. First, set your game to Mayhem Level 5 for the best balance of drop rate and boss difficulty; Mayhem 10 gives a slightly higher drop chance, but Rex can one-shot most mid-game builds unless you have fully optimized endgame gear. Once you have the Borderlands 4 Hot Slugger location memorized, you can fit multiple runs into even a short play session. After you defeat Rex, loot his chest, fast travel back to the Ashfall Peaks entrance, reset the dungeon, and head back in. Most players get their first Hot Slugger drop within 8 to 12 runs, but drop luck varies a lot from person to person.
If you're starting to feel burnt out from repeated runs, it's totally fine to step away for 10-15 minutes to reset your focus. A lot of players I know take short breaks between dungeon runs to play low-stakes casual games to unwind, and Rummy Grand is a popular pick for quick, engaging rounds that don't require too much mental energy. Coming back to the farm with a clear head makes it way less likely you'll make silly mistakes during the boss fight that waste your time. Equip a loot luck booster before each run to bump your drop chance by an extra 15%. To make each run even faster, follow these quick tips:
- Bring a fire-resistant shield to negate 70% of Scorched Rex's primary attack damage
- Use a high-damage sniper rifle to take out his weak point on his forehead from a safe distance
- Save your action skill for when his health drops to 30% to melt his final shield bar instantly
Even if you know the Borderlands 4 Hot Slugger location, following these tips will cut your average run time down from 15 minutes to just 5, so you can farm more runs in less time.
What Makes the Hot Slugger Worth Grinding For?
A lot of players ask if the Hot Slugger is worth the time to farm, especially when there are so many other great shotguns in the game, and the answer is a resounding yes. Its signature perk, “Hot Swap”, automatically reloads the entire magazine for free every time you switch to the Hot Slugger from another weapon, so you can chain it with a long-range sniper or fast SMG for seamless combat transitions. Every third shot also fires a giant incendiary slug that explodes on impact, dealing 500% weapon damage to all enemies within a 10-foot radius, making it perfect for clearing crowds of minor mobs and dealing heavy damage to bosses at the same time. Once you find the Borderlands 4 Hot Slugger location and get your first drop, you'll immediately see why it's so popular among endgame players. Incendiary damage from the Hot Slugger ignores 40% of armored enemy health bars, making it ideal for late-game Mayhem Level runs.
It also pairs incredibly well with specific character builds. The Hot Slugger also works perfectly with Moze's splash damage build, doubling its total output when paired with her Iron Bear skill tree bonuses. Even if you don’t play Moze, it’s still a solid pick for every other Vault Hunter, especially if you prefer close-quarters combat. If you’re a co-op player, the Borderlands 4 Hot Slugger location is also a great spot to farm with friends, as you can split up to clear the dungeon faster and share drops between your group.
Common Hot Slugger Location Mistakes to Avoid
Even if you follow every tip, there are a few common mistakes that can make your farm way longer than it needs to be. One of the biggest mistakes new players make when looking for the Borderlands 4 Hot Slugger location is heading to Ashfall Peaks before they finish the main story. The Cinder Mine dungeon is locked until you complete “Cinderfall Uprising”, so you won’t even be able to get to Scorched Rex’s lair if you go too early. Another mistake is forgetting to raise your Mayhem Level before entering the dungeon; I’ve talked to so many players who did 20+ runs on Mayhem Level 2 wondering why they never got a Hot Slugger drop, and the answer is simply that it doesn’t spawn on lower difficulties.
The most costly mistake, though, is leaving the dungeon too early after killing Rex. Never leave the dungeon before looting Rex's hidden chest behind the rock formation to his left, as that's where the Hot Slugger drops 90% of the time, not from his body. A lot of players loot Rex’s corpse and leave immediately, missing the chest that has the actual drop. You should also avoid skipping the three skag waves at the start of the dungeon, as the gate to Rex’s lair won’t open until all minor enemies are cleared, no matter how fast you run past them.
At the end of the day, the Hot Slugger is one of the most versatile legendary shotguns in Borderlands 4, so it’s well worth putting in the time to track down the Borderlands 4 Hot Slugger location and farm a perfect roll. Look for a variant with the +30% splash damage perk if you can, as that makes it even more powerful for endgame content. Don’t get discouraged if it takes a few extra runs to drop, every legendary grind has a bit of luck involved, and the payoff of having one of the best shotguns in the game in your loadout is more than worth it.