Borderlands 3: How to Unlock More Weapon Slots (2023)

Borderlands 3 players only get two weapon slots to start and then they will unlock the third and fourth weapon slot as they progress.

Borderlands 3: How to Unlock More Weapon Slots (1)

Although many Borderlands 3 players would love to be handed all of the most important items and upgrades in the game as early as possible, developer Gearbox Software had other plans in mind. Even something as essential as class mods in Borderlands 3are not unlocked until players have a few hours of progress under their belts.

But even further out are upgrades like more weapon slots, which don’t come to Borderlands 3 players until much later. Restricting how many guns a player can carry while showing them four slots may seem cruel, but when the game does unlock all 4 it truly feels like an upgrade.

RELATED: How to Trade Weapons and Items in Borderlands 3

Unlocking weapon slots in Borderlands 3 is as simple as purchasing the Storage Deck Upgrade from Sanctuary or just progressing through the game. However, the SDU will only be available after a certain amount of story progress.

How to Unlock the Third Weapon Slot

Borderlands 3 players will start with two weapon slots and then to unlock the third weapon slot they will need to unlock Sanctuary. This requires completing the main story mission on Pandora and taking off in the ship.

While aboard Sanctuary, players can visit a number of vendors, including Marcus who sells the SDUs. He will have SDUs for increasing ammo capacity of every ammo type, upgrades for the bank and lost loot, and in the top right is an upgrade for the weapon slots. Unfortunately, while the other SDUs will replenish after buying one, the weapon slot SDU does not.

Borderlands 3: How to Unlock More Weapon Slots (2)

How to Unlock the Fourth Weapon Slot

Getting the fourth weapon slot in Borderlands 3 is going to take a lot more progress than unlocking the third. Basically, players will need to complete all of the main missions on the planet Prometheaand the fourth slot will unlock automatically.

Without going into spoilers, it will be obvious enough to players when they are “done” with Promethea. However, there are missions that will take the player away from the planet, so don’t be confused. In our playthrough, the fourth weapon slot in Borderlands 3 didn’t unlock until our character was about level 24. With 23 chapters in Borderlands 3, that puts things a little under the halfway mark.

Once players unlock all four weapon slots in Borderlands 3 the game opens up even further than before. Being able to carry different weapon types for each engagement can help expand the strategy when it comes to the enemy classes and whether they have shields, armor, or just health. It’s a shame it takes so long to unlock, but getting four weapon slots is a bigger deal than most think.

Borderlands 3 is available now for PC, PS4, and Xbox One.

MORE: How to Use Shift Codes in Borderlands 3


Borderlands 3: How to Unlock More Weapon Slots? ›

Weapon slots are unlocked by progressing through the main story and not by finishing sub-quests or buying upgrades. The third one is unlocked before you leave Pandora, while the fourth and final one is unlocked after finishing the second planet, Promethea.

How do you unlock the 4 weapon slot in Borderlands 3? ›

How to Unlock the Fourth Weapon Slot. Getting the fourth weapon slot in Borderlands 3 is going to take a lot more progress than unlocking the third. Basically, players will need to complete all of the main missions on the planet Promethea and the fourth slot will unlock automatically.

What is the 4th weapon slot in Borderlands 3? ›

Unlocking the fourth weapon slot

After Pandora, you'll head to Promethea — a giant city planet. There, you'll go on a long quest that spans a few different areas. When it comes time to leave the planet for good, you'll get your fourth inventory slot upgrade.

How many guns can you carry in Borderlands 3? ›

With over a billion guns to be found and used in Borderlands 3, being able to equip as many weapons as possible is key to any Vault Hunter's success. Players will be able to carry a total of four weapons in their weapon slots, but you won't have access to all of these slots at the start of the game.

How do you unlock the elemental slot in Borderlands 3? ›

Once you finish the Chapter 16 main story mission "Cold as the Grave", you'll be able to equip Artifacts that you may have collected beforehand. Yes, the game will be giving you items you can't equip beforehand, thus making the torture more arduous. Finish the mission and you'll finally unlock the Artifact slot.

Are there codes for diamond keys in Borderlands 3? ›

SHiFT codes in Borderlands 3 allow you to redeem free in-game rewards such as Golden Keys, Diamond Keys, and skins — which in turn, unlock fresh content in the form of weapons, ammo, and more to help your gameplay experience.

How do you get the jackpot in Borderlands 3? ›

To begin The Handsome Jackpot side mission (and DLC), you'll need to visit the poster outside of Moxxi's bar on Sanctuary. Once you've began the first DLC mission, head to the Hyperspace Terminal in Sanctuary and navigate to The Handsome Jackpot. Once you've done that, head down to the drop pod to cue a cutscene.

Is the Infinity gun in Borderlands 3? ›

Infinity is a legendary pistol in Borderlands 3 manufactured by Vladof. It is obtained randomly from any suitable loot source, but has an increased chance to drop from Anointed Alpha located in The Anvil.

Which Borderlands has the most guns? ›

Guns, Guns, and Of Course, More Guns

Borderlands 2 has a whopping 17.75 million guns, which is nothing to scoff at, but Borderlands 3 pushed the envelope with that number hitting and surpassing 1 billion.

Does Moxxi give you a guns Borderlands 3? ›

Moxxi's tip jar in Borderlands 3 is a wonderful tongue-in-cheek gag that also serves a purpose. By tipping Moxxi a large enough sum, players can unlock a neat weapon – though whether you want to hold out until a higher level is entirely person preference.

What is the max inventory slots in Borderlands 3? ›

I went through and counted and Borderlands 3 has 167 unique legendaries. That's triple the amount of storage space you get at max storage space SDU rank, 50 slots. Each character has 40 slots for gear, and 4 more with the weapons they're holding.

What gun does tyreen give you? ›

Tyreen is offering a special gun if the Vault Hunters are willing to kill themselves for the Children of the Vault's entertainment. Follow the waypoint to where she's set up her deathtrap and make the decision. If you agree to be her "gun slut", the Sellout pistol will be given.

How do you unlock the golden chest in Borderlands 3? ›

The Golden Chest is a unique lootable object located at Sanctuary in Borderlands 2, at Concordia in The Pre-Sequel, at both Fyrestone and New Haven in the GOTY Enhanced edition of Borderlands, and aboard Sanctuary III in Borderlands 3. They are opened by using a Golden Key.

How long is Borderlands 3 story? ›

When focusing on the main objectives, Borderlands 3 is about 23 Hours in length. If you're a gamer that strives to see all aspects of the game, you are likely to spend around 74 Hours to obtain 100% completion.

How do you unlock the devil's razor in Borderlands 3? ›

To unlock Dynasty Dash: Devil's Razor, you will first need to accept the mission from the sign spinner in Devil's Razor. You'll find the mission location below. If there is no exclamation point at the starting location, you will not be able to start the mission.

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