Launch super-heated slugs at individual foes, or hurl the entire weapon and ignite groups of enemies in a flash inferno.

The Javlok is a IconGrineerB.svgGrineer speargun that fires superheated projectiles dealing Heat b.png Heat damage. Its Alternate Fire allows the weapon itself to be thrown at enemies, dealing an area-of-effect damage which is boosted by the remaining ammunition in the magazine.

Manufacturing Requirements
Time: 24 hrs
Rush: Platinum64.png 35
MarketIcon.png Market Price: Platinum64.png 240 Blueprint2.svg Blueprints Price:Credits64.png15,000
Chem Lab Research ClanAffinity64.png 3,000
Time: 72 hrs
Prereq: Ignis
Ghost Clan x1   Shadow Clan x3   Storm Clan x10   Mountain Clan x30   Moon Clan x100

Characteristics[edit | edit source]

This weapon deals primarily Heat b.png Heat damage.


  • Innate Heat b.png Heat damage – effective against health and shields.
  • Primary fire impacts on enemies or surfaces causes an explosion that damages all enemies in a 1.6 meter radius.
  • Secondary fire throws the Javlok, which staggers enemies and creates a 6.9 meter explosion.
    • Physical contact with the thrown spear inflicts high Puncture b.svg Puncture damage – effective against health.
  • Alt-fire deals 20% additional damage per round in the magazine.
  • Pinpoint accuracy.
  • Very short charge time.
    • Automatic charge-up.
  • Innate two Madurai Pol.svg polarity slots.


  • Primary fire cannot deal Slash b.svg Slash, Impact b.svg Impact, and Puncture b.svg Puncture damage; does not benefit from mods that converts to these damage types.
  • Primary fire fires as soon as it has reached a full charge which can lead to premature firing.
  • Both firing modes can inflict self-damage.
  • Secondary fire consumes all ammo in the magazine, forcing reload on pickup.
  • Projectiles have travel time.
  • Javlok flies in an arc when thrown, making precise aiming difficult.
  • When not thrown at full charge, the Javlok has a 1 second delay after landing before exploding.
  • Once the Javlok is thrown, the player will not be able to use it until it is either picked up or when it returns to the player's hands after 20 seconds.

Javlok Capacitor[edit | edit source]

Main article: Javlok Capacitor

The Javlok Capacitor is a special resource that is used exclusively for crafting the GrnFlameSpear.png Javlok. Javlok capacitors can only be acquired as a drop from Prosecutors in the Grineer Shipyard tileset, with a 100% drop chance.

Secondary Fire[edit | edit source]

  • The Javlok's secondary fire throws the weapon itself at the target, inflicting 100 physical damage to the impaled target and 150 area-of-effect Heat b.png Heat damage to all enemies within the impact radius.
    • If thrown without a full charge, the detonation area is indicated by a glowing aura around the weapon before detonating after a short fuse.
  • The Javlok will remain at the location where it was thrown for 20 seconds after landing, automatically teleporting to the player after said duration or until the player manually picks the Javlok back up again.
  • The Javlok will detonate immediately after landing if thrown at full charge.
  • Throwing the Javlok will consume all of the remaining ammo in the magazine, but only if the Javlok explodes. Throwing the weapon at close range and picking it up before it explodes will neither consume ammo, nor create an explosion.
  • The Javlok's secondary fire has a max throwing range of 48 meters.
    • The arc Javlok will take when thrown is affected by both the angle of the throw as well as how much the throw was charged.
  • While the Javlok's secondary fire can be charged while wall-latching, the weapon itself will not be thrown until the player dismounts from the wall or zipline, upon which the Javlok will immediately launch.
    • This also applies to sliding and can result in unintentional, often lethal damage if the user is aiming too low.
  • If the Javlok directly hits an enemy and the enemy survives the explosion, the Javlok will remain impaled on the enemy.

Tips[edit | edit source]

  • The Javlok pairs well with EmberIcon272.png Ember as her {{Ability}} Accelerant not found ability multiplies the amount of Heat b.png Heat damage taken by an affected enemy.
  • Both the primary and secondary fire of the Javlok can be controlled by IvaraIcon272.png Ivara's Navigator130xDark.png Navigator.
  • The Javlok's primary fire mode has an Alarming noise level, but the alt-fire throw itself is considered silent and therefore will not break Ivara's Prowl.
  • JavlokCapacitor64.png Javlok Capacitors, which drop from Grineer Prosecutors, can be easily farmed on Ceres, where multiple Prosecutors are nearly guaranteed to spawn.

Trivia[edit | edit source]

  • The name is a play on "Javelin" and the "Lok" naming scheme which is common to Grineer weapons.
  • The Javlok has its own unique set of idle animations on every Warframe, both on Agile and Noble.
  • The Javlok was originally named "Flame-spear" by the council chat.
  • The Javlok is so far the only weapon that has a resource exclusive to it, in this case being the JavlokCapacitor64.png Javlok Capacitor.
  • When holstered, the Javlok's hilt will retract and the muzzle of the weapon will be covered.

Bugs[edit | edit source]

  • Sometimes the Javlok will not be equipable for a period of time after being picked up, forcing the user to switch weapons.
  • Having punch through on the Javlok and using the alt-fire will cause it to do a self-harming explosion that has no graphical indicator, but won't physically "explode" and damage enemies until it's reached a sufficient stopping point in flight.
  • Having -accuracy will seemingly shift the AoE radius in such a weird way that it will cause self-harm when thrown too close.
  • The AoE from throwing the Javlok doesn't deal damage to arming Sapping Osprey orbs. Only a direct hit from the thrown Javlok can damage arming orbs.
  • Throwing the Javlok on a Nullifier Crewman's bubble will lodge the weapon into it. Disabling the bubble will make the Javlok disappear along with the bubble and killing the Nullifier Crewman will force the player to wait until the Javlok automatically returns.
    • It's possible to pick up the Javlok while it's lodged in the bubble.
  • While Hall of Mirrors is active, picking the Javlok up after having thrown it earlier will result in the Javlok disappearing but not actually returning to Mirage's possession. The weapon will still automatically return after 20 seconds.
  • Using the alt fire during Stasis and then walking into the thrown Javlok while it floats mid air will cause the player to pick it back up but also deal a significant amount of self-damage.
  • In some cases, it's possible for the Javlok to be lodged underground, even without punch through mods equipped.
    • The weapon will automatically return to the player after 20 seconds.
  • When an enemy with a lodged Javlok dies, there is a chance for the weapon to disappear.

Media[edit | edit source]

Javlok Skins Edit

Patch History[edit | edit source]

Hotfix 22.16.5

  • Fixed Javlok throwing sound playing when equipping Mods in Arsenal.

Update 22.12

  • Fixed the Javlok alt fire not cancelling reload when you had no more ammo in the clip.
  • Mastery Rank increased from 6 to 7.
  • Damage from direct hits increased from 185 to 230 (primary fire).
  • Reload speed increased from 2.2 secs to 1.9 secs.
  • Removed camera shake when throwing spear.

Update 22.10

  • Fixed Clients seeing the Javlok explosion after the enemy falls to the ground and the Javlok floating a couple feet from the point of actual impact.

Update 22.9

  • Fixed the Javlok no longer sticking inside of enemies that did not die from the javelin.
  • Fixed the Javlok marker not displaying if Transferring to Operator before the Javlok lands.

Hotfix 22.8.3

  • Fixed Ash’s Blade Storm not removing the temporary melee weapon given to Ash if the only weapon he has is a Speargun (Javlok, Scourge, etc) and he's currently thrown the Speargun out when activating Blade Storm.

Update 21.6

  • Reloading can now be interrupted by throwing the Javlok, and can be thrown after depleting all primary fire without having to wait for it to fully reload.

Hotfix 21.4.2

  • Fixed Javlok consuming ammo from throwing while having the Void Fissure Reactant Buff (infinite ammo).

Update 21.4

  • Removed the explosion delay from Javlok's spear when thrown fully charged. Quick throw retains the delay to facilitate getting out of range before it detonates.

Hotfix 21.3.1

  • Javlok alt fire changes:
    • AOE explosion happens 1 second after impact.
    • Consumes ammo and AOE damage is increased by 20% per round in mag when thrown.
    • Explosion FX updated to better reflect the AOE range.
    • Ammo pool reduced to 300.
  • Lessened the spread from the Heavy Caliber mod when used with the Scourge, Ferrox, and Javlok.
  • Adhesive Blast is no longer equipable on the Javlok and the Scourge.

Hotfix 21.0.9

  • Fixed the Javlok playing a weird animation when quickly cycling through ‘Randomized’ color options.

Update 21.0

  • Fixed playing a holstering animation after throwing the Javlok or Ferrox.

Hotfix 20.4.6

  • Fixed a memory leak when throwing the Javlok/Ferrox in Limbo’s Stasis.

Hotfix 20.4.4

  • Fixed experiencing a crash after throwing the Javlok in the air then Transferring to the Operator.

Update 20.3

  • Convlave
    • Reduced the damage of the Javlok in Conclave.

Hotfix 20.2.3

  • Conclave
    • Reduced the collision size of the Javlok primary fire projectile in Conclave.

Update 20.0

  • Stats for alternate fire are now displayed in the arsenal.
  • Fixed a visual bug for Clients where the charged shots of the Opticor, Angstrum, Javlok, or Ferrox would appear to fire twice.

Hotfix 19.13.1

Update 19.13

  • Fixed the Javlok disappearing when being thrown into water.
  • Fixed the Javlok not having a firing animation when on a zipline and also not being able to throw it.
  • Fixed missing pickup sounds for the Javlok.

Hotfix 19.12.1

  • Fixed Ash’s Noble/Agile animations not functioning properly with the Javlok.
  • Fixed Equinox’s Noble/Agile animations not functioning properly with the Javlok.

Update 19.12

  • Conclave
    • Reduced the primary fire damage of the Javlok in Conclave.

Hotfix 19.11.5

  • Javlok's projectile collision size has been increased, making it easier to land hits while also dealing 50 Heat AoE damage in a 1.6m radius.
  • Fixed the Javlok disappearing after being thrown if you left the room.

Update 19.6

  • Fixed Client and Host seeing the Javlok in different positions once thrown.

Hotfix 19.5.4

  • Conclave:
    • Adjusted Charged throw return to holster time to be the same as its quick throw in Conclave.


  • Fixed Javlok not keeping appearance customization when thrown.

Update 19.4

  • Introduced to the game.

Last update: Update 23.2
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