☆ How Rush Saved Mercenary Day (Bounty Pack 1)
★ 12 active SHiFT Codes as of December 4, 2025
☆ Black Market Location
★ Elemental Weakness Chart
☆ Legendary Weapons
★ Builds: Vex | Amon | Rafa | Harlowe

This is a guide about Firmware set bonuses in Borderlands 4. Learn how Firmware works in the game and see a complete list of Firmware Sets by continuing below!
| Firmware Guides | ||
|---|---|---|
| List of All Firmware Sets | How to Transfer Firmware | How to Farm Firmware |
List of Contents
| Set Bonus | 1 pc | 2 pc | 3 pc |
|---|---|---|---|
| Action Fist | Melee Damage is increased by 15% | Action Skill Damage is increased by 10% | On Melee kill, Action Skill Damage is increased by 25% for 8s |
| Airstrike | Splash Radius is increased by 20% | Splash Damage is increased by 20% | On kill, drop a missile strike on nearby enemies |
| Atlas EX (UVHM) |
Gun Mode Switch Speed is increased by 20% | Gun Damage is increased by 10% while an Atlas Target Lock is active | When killing an Atlas Target Locked enemy, automatically Target Lock another nearby enemy |
| Atlas Infinum (UVHM) |
Gun Fire Rate is increased by 5% while an Atlas Target Lock is active | Guns with Atlas-licensed parts gain 10% Damage | Atlas Target Locks are infinite, unless you swap Guns |
| Baker | Shield Capacity is increased by 10% | Repkit Cooldown Duration is reduced by 15% | Maximum Health is increased by 25% |
| Bullets To Spare (UVHM) |
Fire Rate is increased by 5% | Gun Magazine Size is increased by 20% | Gun Fire Rate is increased by 50% of Gun Magazine Size |
| Daed-dy O' (UVHM) |
Gun Mode Switch Speed is increased by 25% | Gun Magazine Size is increased by 15% | On Mode Switch, grants 20% Damage and 20% Fire Rate for 5s |
| Deadeye | Gun Accuracy is increased by 30% | Gun Critical Hit Damage is increased by 25% | Every Critical Hit grants 15% Critical Damage per Stack (5 max stacks) for 10s |
| Gadget Ahoy | Ordnance Cooldown Duration is reduced by 15% | Ordnance Damage is increased by 20% | Ordnance Kills grant 20% Damage for 15s |
| Get Throwin (UVHM) |
Ordnance Damage is increased by 10% | Splash Radius is increased by 20% | Grenades and Tediore Thrown Guns have a 50% chance to spawn homing Missiles that home in on nearby enemies |
| God Killer | Damage Dealt to Badass enemies is increased by 10% | Damage Taken from Badass enemies is reduced by 10% | On killing a Badass Enemy, Damage Dealt is increased by 20% for 60s |
| GOOJFC | Action Skill Cooldown Rate is increased by 10% | Action Skill Damage is increased by 15% | Action Skill Cooldown Rate is increased by an additional 20% |
| Heating Up (UVHM) |
Gun Reload Speed is increased by 20% | Amount of Overheated shots before breaking is increased by 50% with CoV-Licensed Gun Parts | Gun Damage is increased by 25% while Overheating with CoV-Licensed Gun Parts |
| High Caliber | Projectile Speed is increased by 25% | Gun Damage is increased by 10% | Bullets Pierce Enemies |
| Jacked (UVHM) |
Zoom In Speed is increased by 20% | Hyperion Gun Shield Capacity is increased by 25% | Hyperion Gun Shields have a 30% chance to Ricochet Projectiles back to the enemy |
| Lifeblood | Repkit Healing is increased by 10% | Lifesteal is increased by 5% | On kill, regenerate 10% of Maximum Health |
| Oscar Mike | Gun Reload Speed is increased by 10% | Gun Damage is increased by up to 20% based on the emptiness of your Gun's Magazine | After Reloading, Gun Fire Rate is increased by 30% for 4s |
| Reel Big Fist | Melee Damage is increased by 15% | Melee Damage is increased by an additional 25% | Melee Kills trigger a Nova explosion for 200% Melee Damage |
| Risky Boots | When Health is less than 35%, Damage Taken is reduced by 30% | When Health is less than 35%, Movement Speed is increased by 35% | When Health is less than 35%, Damage Dealt is increased by 100% and Lifesteal is increased by 5% |
| Rubberband Man | Damage Reduction is increased by 5% | Lifesteal is increased by 5% | Bonuses granted by this Firmware are doubled |
| Trickshot (UVHM) |
Gun Reload Speed is increased by 5% | Gun Critical Hit Damage is increased by 10% | Critical Hits have a 50% chance to refill 1 Ammo to the currently equipped Gun's Magazine |

Firmware set bonuses can provide minor to major bonuses depending on the number of equipment that share the same firmware. To maximize a firmware's effect, three equipment with the same bonus must be equipped on your character.

Firmware set bonuses will only appear for equipment. These include Repkits, Ordnance, Class Mods, Shields, and Enhancements. If you're looking to maximize set bonuses, you can equip a 3 piece bonus and a 2 piece bonus at the same time.
Firmware set bonuses will not appear on weapons and are exclusive to the equipment mentioned above.

Borderlands 4 Walkthrough Wiki
| Borderlands 4 Wiki Contents | |
|---|---|
Main Missions |
Side Missions |
Builds |
Tips and Tricks |
Bosses |
Customizations |
Weapons |
Shields and Repkits
|
Ordnances |
Skills |
Specializations |
Safehouses |
Auger Mines |
Vehicles |
Maps |
- |
List of All Firmware Sets



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