Updated: Mar 13, 2026

Borderlands 4Kill Spring

May I offer thee a leech in these trying times?

Content
Base Game
Repkit Type
Rarity
Legendary
Manufacturer
Tediore
Elements

Kill SpringAll Details

Copy Kill Spring Code

Kill Spring - About

The Legendary Repkit Kill Spring is manufactured by Tediore and comes from the Borderlands 4 Base Game.

Kill Spring - Unique Ability

On Kill, the Kill Spring converts 100% of any excess Damage dealt to the target into up to 4 Healing Orbs.
These Healing Orbs automatically seek out nearby allies, restoring their Health upon contact.
If Health is full, Orbs restore Shield instead, and if Shield is full, they grant Overshield.

Kill Spring - Abilities

Like most Legendary Artifacts the Kill Spring has 1 of 21 Abilities from these 4 Categories.
Artifacts can't be anointed or have a Mayhem Level.

Utility Abilities

Last Stand
5s Invulnerability when Health drops below 50%.
Cooldown: 40s
Elemental Projector
+129% [Element] Dmg for elemental status effects applied to you.
Flesh Melter
On kill, stacks a buff up to 5 times and each lasts 12.5s.
Each stack: +32% Corrosive Dmg
Atom Balm
+50% Radiation Aura Dmg
+25% Radiation Burst Dmg
+25% Radiation Burst Radius
Loot Expanding
+137% Cash Pickups
+40% Ammo Pickups
+65% Health Pickups
Ice Breaker
+50% Dmg to Frozen Enemies
+61% Cryo Efficiency

Melee/Slide/Slam Abilities

Berzerker
Dealing Melee, Slide or Slam Damage grants you
+13% Fire Rate and +20% Sprint Speed for 10s.
Cutpurse
Dealing Melee, Slide or Slam Damage
restores 13% Ammo for you and allies.
[Element] Stone
Melee, Slide, and Slam Damage deals
+80% Bonus [Element] Damage
Knife Drain
+75% Melee/Slide/Slam Lifesteal

Slide Abilities

Cauterizing
Slide: +95% Incendiary Dmg
Incendiary puddle on slide impact.
Cooldown: 10s
Electric Slide
Slide: +95% Shock Dmg
While sliding shock beams chain up to 7 nearby enemies.
Caustic Coast
Slide: +50% Corrosive Dmg
While sliding shoots 10 corrosive Shards/s.
Snowdrift
Slide: +95% Cryo Dmg & +158% Speed
Slide launches Cryo Snowball.
Cooldown: 5s
Radiodead
Slide: +95% Radiation Dmg
Radiation puddle on slide impact.
Puddle duration: 5s

Slam Abilities

Hot Drop
Slam: +125% Incendiary Dmg & +50% Radius
On impact: Launches 5 fireballs that leave magma puddles.
Spark Plug
Slam: +125% Shock Dmg & +50% Radius
On impact:
Spawns tesla-coil that deals Shock Slide-Dmg to nearby enemies for 8s.
Toxic Revenger
Slam: +125% Corrosive Dmg & +50% Radius
On impact: spawns Corrosive puddle for 5s.
Ice Spiker
Slam: +125% Cryo Dmg & +50% Radius
On impact: Launches 3 Cryo Spikes that pierce enemies.
Cryo Spikes deal Amara's Action Skill Damage.
Mind Melt
Slam: +125% Radiation Dmg & +50% Radius
On impact: Creates Radiation Aura around player for 8s.
Rear Ender
+110% Slam Dmg
+50% Slam Radius
+75% Slam Knockback

Kill Spring - Augments

Repkit Augments grant a temporary effect on use.
All Augments are equally common, giving each Augment a 4.35% Chance (1 in 23) to appear. [Element] Augments are also 1 in 23, then have a 20% Chance (1 in 5) for a specific Element.

Damage Augments

Amp Your next shot deals +200% Damage.
Elemental Affinity +25% Elemental Damage for 8s.
Enrage +30% Damage dealt and +15% Damage taken for 8s.
Fire Rate +15% Fire Rate for 8s.
Hard Hitter +50% Melee Damage for 8s.
Splash Damage +25% Splash Damage for 8s.

Damage Ability Augments

Nova Release an [Element] Nova.
Splat Spawn an [Element] Splat.

Repkit Ability Augments

Health Burst After 8s, grants an extra heal equal to 50% of the initial Heal.
Medic Heals nearby allies for 50% of the Repkit's Healing.
Overshield Replaces Healing with an Overshield equal to the Heal.
Power Cycle Initiates Energy Shield recharge.

Survivability Augments

Elemental Immunity [Element] Immunity for 3s.
Elemental Resistance +50% [Element] Resistance for 8s.
Leech +30% Lifesteal for 8s.
Overdose +45% Healing received for 8s.
Tank -50% Damage Taken for 8s.

Utility Augments

Accelerator +100% Action Skill Cooldown Rate for 8s.
Go Go Gadget +50% Ordnance Cooldown Rate for 8s.
Reload Speed +25% Reload Speed for 8s.
Speed +40% Move Speed for 8s.

Passive Augments

Passive Augments are always active and grant no effect on use.

Everlasting +20% Healing and +20% Duration
Repkit Cooling -33% Cooldown

Repkit Augments grant a temporary effect on use.
All Augments are equally common, giving each Augment a 4.76% Chance (1 in 21) to appear. [Element] Augments are also 1 in 21, then have a 20% Chance (1 in 5) for a specific Element.

Damage Augments

Amp Your next shot deals +200% Damage.
Elemental Affinity +25% Elemental Damage for 8s.
Enrage +30% Damage dealt and +15% Damage taken for 8s.
Fire Rate +15% Fire Rate for 8s.
Hard Hitter +50% Melee Damage for 8s.
Splash Damage +25% Splash Damage for 8s.

Damage Ability Augments

Nova Release an [Element] Nova.
Splat Spawn an [Element] Splat.

Repkit Ability Augments

The Kill Spring can't spawn with Health Burst and Overshield.

Medic Heals nearby allies for 50% of the Repkit's Healing.
Power Cycle Initiates Energy Shield recharge.

Survivability Augments

Elemental Immunity [Element] Immunity for 3s.
Elemental Resistance +50% [Element] Resistance for 8s.
Leech +30% Lifesteal for 8s.
Overdose +45% Healing received for 8s.
Tank -50% Damage Taken for 8s.

Utility Augments

Accelerator +100% Action Skill Cooldown Rate for 8s.
Go Go Gadget +50% Ordnance Cooldown Rate for 8s.
Reload Speed +25% Reload Speed for 8s.
Speed +40% Move Speed for 8s.

Passive Augments

Passive Augments are always active and grant no effect on use.

Everlasting +20% Healing and +20% Duration
Repkit Cooling -33% Cooldown

Kill Spring - Stats

The Kill Spring has 3 of 22 Stats from these 3 Categories:

Damage Augments

Amp Your next shot deals +200% Damage.
Elemental Affinity +25% Elemental Damage for 8s.
Enrage +30% Damage dealt and +15% Damage taken for 8s.
Fire Rate +15% Fire Rate for 8s.
Hard Hitter +50% Melee Damage for 8s.
Splash Damage +25% Splash Damage for 8s.

Damage Ability Augments

Nova Release an [Element] Nova.
Splat Spawn an [Element] Splat.

Repkit Ability Augments

The Kill Spring can't spawn with Health Burst and Overshield.

Medic Heals nearby allies for 50% of the Repkit's Healing.
Power Cycle Initiates Energy Shield recharge.

Survivability Augments

Elemental Immunity [Element] Immunity for 3s.
Elemental Resistance +50% [Element] Resistance for 8s.
Leech +30% Lifesteal for 8s.
Overdose +45% Healing received for 8s.
Tank -50% Damage Taken for 8s.

Utility Augments

Accelerator +100% Action Skill Cooldown Rate for 8s.
Go Go Gadget +50% Ordnance Cooldown Rate for 8s.
Reload Speed +25% Reload Speed for 8s.
Speed +40% Move Speed for 8s.

Passive Augments

Passive Augments are always active and grant no effect on use.

Everlasting +20% Healing and +20% Duration
Repkit Cooling -33% Cooldown

Damage Augments

Amp Your next shot deals +200% Damage.
Elemental Affinity +25% Elemental Damage for 8s.
Enrage +30% Damage dealt and +15% Damage taken for 8s.
Fire Rate +15% Fire Rate for 8s.
Hard Hitter +50% Melee Damage for 8s.
Splash Damage +25% Splash Damage for 8s.

Damage Ability Augments

Nova Release an [Element] Nova.
Splat Spawn an [Element] Splat.

Repkit Ability Augments

Health Burst After 8s, grants an extra heal equal to 50% of the initial Heal.
Medic Heals nearby allies for 50% of the Repkit's Healing.
Overshield Replaces Healing with an Overshield equal to the Heal.
Power Cycle Initiates Energy Shield recharge.

Survivability Augments

Elemental Immunity [Element] Immunity for 3s.
Elemental Resistance +50% [Element] Resistance for 8s.
Leech +30% Lifesteal for 8s.
Overdose +45% Healing received for 8s.
Tank -50% Damage Taken for 8s.

Utility Augments

Accelerator +100% Action Skill Cooldown Rate for 8s.
Go Go Gadget +50% Ordnance Cooldown Rate for 8s.
Reload Speed +25% Reload Speed for 8s.
Speed +40% Move Speed for 8s.

Passive Augments

Passive Augments are always active and grant no effect on use.

Everlasting +20% Healing and +20% Duration
Repkit Cooling -33% Cooldown

Kill Spring - Changelog

Update: Oct. 23, 2025

Healing Orbs spawned from Legendary Repkit Kill Spring can no longer heal enemies.

Kill SpringHow to get it?

Base Game
General Farming Guidance

To collect and equip the Legendary Kill Spring, you need to own the BL4 Base Game.

Base Game Items in Borderlands 4 are often obtainable from many sources, including those in DLCs. Here’s your quick start guide:

Farming Preparations

Identify the Best Source: The Sources below are generally ranked from best to worst. Make sure to complete any required quests and be aware of Source^Restrictions.
Locate the Source: Make sure you have unlocked the Location.
Equip Your Character: Equip your character to easily overcome enemies.
Set Spawn Point: Locate the nearest Save Station to use as your spawn point.

Bonus Tips

Combine Runs: Get more loot per run by integrating nearby sources into your farming route.
Track Progress: Track your runs to more precisely predict drops and more clearly monitor progress. Additionally, time your runs to see how tweaks affect your farming efficiency.
Speed it up: Explore shortcuts and boost your movement speed to minimize travel time. Also, aim to shorten your time to kill with higher DPS or big damage bursts.
Realistic Expectations: Be patient and persistent when farming. Despite precise, verified drop rates, your actual runs might exceed or fall short of inferred expectations.