WEAPON MODS (139)

Every Marathon weapon mod across all slot types, with stats, effects, compatible weapons, and balance history

Barrel Prestige
Flechette Split Action – Marathon Barrel mod
Flechette Split Action
Equip Speed -0.05sHipfire Spread -0.08°Recoil -39.2%
Barrel Prestige
Lockout Muzzle Brake – Marathon Barrel mod
Lockout Muzzle Brake
Hipfire Spread -1.8°Weight -18
Barrel Prestige
Mips Slug Converter – Marathon Barrel mod
Mips Slug Converter
Aim Assist +0.5°Fire Rate +57Range +1+1 more
Barrel Prestige
Outland Suppressor – Marathon Barrel mod
Outland Suppressor
Range +20Recoil -20%
Barrel Prestige
Overcharge Lens – Marathon Barrel mod
Overcharge Lens
Aim Assist +1°Hipfire Spread -0.16°Range +2
Barrel Prestige
Sonar Shot – Marathon Barrel mod
Sonar Shot
Range +12Recoil -12.8%
Barrel Prestige
Triple Barrel – Marathon Barrel mod
Triple Barrel
Damage -4.5Hipfire Spread +1.36°Weight -22.5%
Grip Prestige
Full-Auto Selector – Marathon Grip mod
Full-Auto Selector
Hipfire Spread -1.25°Rpm +92
Magazine Prestige
Adaptive Mag – Marathon Magazine mod
Adaptive Mag
Magazine Size +30Reload Speed -0.24s
Magazine Prestige
Adrenal Feedback Rounds – Marathon Magazine mod
Adrenal Feedback Rounds
Magazine Size +18
Magazine Prestige
Flechette Drum – Marathon Magazine mod
Flechette Drum
Magazine Size +64Ready Speed -0.32s
Magazine Prestige
Impact Shockwave – Marathon Magazine mod
Impact Shockwave
Magazine Size +2Range +5
Magazine Prestige
Infinity Belt – Marathon Magazine mod
Infinity Belt
Magazine Size +90Reload Speed +1.55s
Magazine Prestige
Interval Mag – Marathon Magazine mod
Interval Mag
Ads Spread -0.14°Aim Assist +0.05°Magazine Size +18+2 more
Magazine Prestige
Kingmaker Mag – Marathon Magazine mod
Kingmaker Mag
Ammo Reserves +11Reload Speed -1.3s
Magazine Prestige
Overclocked Delimiter – Marathon Magazine mod
Overclocked Delimiter
Reload Speed -0.74sVoltdrain -3%
Magazine Prestige
Rodeo Mag – Marathon Magazine mod
Rodeo Mag
Fire Rate +60Magazine Size +49Recoil -13.2%
Magazine Prestige
Stopping Mag – Marathon Magazine mod
Stopping Mag
A custom-made mod for the Impact HAR. Increases magazine size and reload speed.
Magazine Prestige
Thermal Surge Battery – Marathon Magazine mod
Thermal Surge Battery
Reload Speed -0.52sVoltdrain -2%
Optic Prestige
Charge-Coupled Optic – Marathon Optic mod
Charge-Coupled Optic
Ads Spread -0.2°
Optic Prestige
Lever Focus – Marathon Optic mod
Lever Focus
Ads Speed -0.13sAds Zoom +0.9Hipfire Spread -1.27°+1 more
Optic Prestige
Q-Tap Regen Optic – Marathon Optic mod
Q-Tap Regen Optic
Ads Speed -0.7sAds Zoom +1.1Damage -3+2 more
Optic Prestige
Vital Intel – Marathon Optic mod
Vital Intel
Ads Speed -0.07sEquip Speed -0.14s
Shield Prestige
Circuit Shield – Marathon Shield mod
Circuit Shield
Recoil -10%
Shield Prestige
Overclocked Shield – Marathon Shield mod
Overclocked Shield
Recoil -6.1%Weight -4.5%
Barrel Superior
Farshot Barrel – Marathon Barrel mod
Farshot Barrel
Ads Spread -0.2°Range +45
Barrel Superior
Ironhold Barrel – Marathon Barrel mod
Ironhold Barrel
Crouch Spread Bonus -20%Equip Speed -10sRecoil -42%
Barrel Superior
Weighted Barrel – Marathon Barrel mod
Weighted Barrel
Aim Assist +0.36°Moving Inaccuracy -10.5%
Chip Superior
Blue Blood – Marathon Chip mod
Blue Blood
Downing a hostile Runner restores health.
Chip Superior
Circuit Tracers – Marathon Chip mod
Circuit Tracers
Eliminations with this weapon reload the magazine by a massive amount.
Chip Superior
Insomniac – Marathon Chip mod
Insomniac
While under the effects of Energy Amp, eliminating hostiles with this weapon extends its duration by a massive amount.
Chip Superior
Insurrection – Marathon Chip mod
Insurrection
The weapon deals significantly increased damage against UESC forces.
Chip Superior
Last Resort – Marathon Chip mod
Last Resort
While you are Overheated non-precision damage is increased by a massive amount.
Chip Superior
Mini Jammer – Marathon Chip mod
Mini Jammer
While aiming down sights for a very short duration, you gain the Signal Jammer effect.
Chip Superior
Punishment – Marathon Chip mod
Punishment
This weapon deals significantly increased damage against Sph't combatants.
Chip Superior
Reverse Card – Marathon Chip mod
Reverse Card
While below half health, breaking the shield of a hostile Runner restores your shields.
Chip Superior
Rocket Start – Marathon Chip mod
Rocket Start
Eliminating a hostile shortly after sprinting grants you the effects of Cardio Kick for a long duration.
Chip Superior
Rorschach Test – Marathon Chip mod
Rorschach Test
While surrounded by hostiles, reloading overflows the magazine by a significant amount. Ballistic weapons overflow from reserves. Volt weapons generate a smaller portion of overflow.
Chip Superior
See Ya – Marathon Chip mod
See Ya
Reloading this weapon when the magazine is empty causes you to become briefly invisible.
Chip Superior
Slip Protocol – Marathon Chip mod
Slip Protocol
While moving, this weapon's stability and accuracy increase by a massive amount.
Chip Superior
Stack Overflow – Marathon Chip mod
Stack Overflow
Reloading this weapon when the magazine is empty overflows the magazine by a massive amount.
Chip Superior
Swarm Directive – Marathon Chip mod
Swarm Directive
Precision eliminations with this weapon spawn a large amount of flechette seekers that heal you when damaging hostiles.
Chip Superior
Testament – Marathon Chip mod
Testament
Aiming down sights for a short duration increases this weapon's range and aim assist by a massive amount.
Chip Superior
Torch Bug – Marathon Chip mod
Torch Bug
Item slightly improves the reload time of all weapons.
Grip Superior
Vigilant Grip – Marathon Grip mod
Vigilant Grip
Equip Speed -0.39sRecoil -29.5%
Magazine Superior
Combat Mag – Marathon Magazine mod
Combat Mag
Magazine Size +6Range +20Reload Speed -0.65s
Magazine Superior
Hi-cap Mag – Marathon Magazine mod
Hi-cap Mag
Magazine Size +9
Magazine Superior
Hi-Speed Mag – Marathon Magazine mod
Hi-Speed Mag
Magazine Size +3Reload Speed -0.52s
Optic Superior
Far Reach Optic – Marathon Optic mod
Far Reach Optic
Ads Zoom +0.5Range +11
Optic Superior
Hi-Zoom Optic – Marathon Optic mod
Hi-Zoom Optic
Ads Spread -0.14°Ads Zoom +1.6Range +18
Optic Superior
Rangefinder Optic – Marathon Optic mod
Rangefinder Optic
Ads Spread -0.2°Ads Zoom +0.6Moving Inaccuracy -13.6%
Optic Superior
Vigilant Lens – Marathon Optic mod
Vigilant Lens
Ads Speed -0.09sAds Spread -0.33°Ads Zoom +0.9
Barrel Deluxe
Impulse Brake – Marathon Barrel mod
Impulse Brake
Ads Spread -0.14°Aim Assist +0.22°
Barrel Deluxe
Ironhold Barrel – Marathon Barrel mod
Ironhold Barrel
Equip Speed -0.05sRecoil -68.4%
Barrel Deluxe
Long-range Barrel – Marathon Barrel mod
Long-range Barrel
Hipfire Spread -0.63°Range +2
Barrel Deluxe
Steady Barrel – Marathon Barrel mod
Steady Barrel
Equip Speed -0.09sRecoil -45.4%
Chip Deluxe
Alternating Current – Marathon Chip mod
Alternating Current
Restore a significant amount of health or shields when damaging a target affected by EMP.
Chip Deluxe
Insurance Plan – Marathon Chip mod
Insurance Plan
While under the effects of a Mechanic's Kit or OS Debug, defeating a hostile significantly extends its duration.
Chip Deluxe
Insurrection – Marathon Chip mod
Insurrection
The weapon deals moderately increased damage against UESC forces.
Chip Deluxe
Mini Jammer – Marathon Chip mod
Mini Jammer
While aiming down sights for a brief duration, you gain the Signal Jammer effect.
Chip Deluxe
Stack Overflow – Marathon Chip mod
Stack Overflow
Reloading this weapon when the magazine is empty overflows the magazine by a small amount.
Chip Deluxe
Swarm Directive – Marathon Chip mod
Swarm Directive
Precision eliminations with this weapon spawn a moderate amount of flechette seekers that heal you when damaging hostiles.
Chip Deluxe
Torch Bug – Marathon Chip mod
Torch Bug
Note: Item slightly increases the reload speed of all weapons.
Grip Deluxe
Combat Grip – Marathon Grip mod
Combat Grip
Ads Speed -0.15sEquip Speed +0.14s
Grip Deluxe
Guarded Grip – Marathon Grip mod
Guarded Grip
Equip Speed -0.2sRecoil -9%
Grip Deluxe
Snapshot Grip – Marathon Grip mod
Snapshot Grip
Ads Speed -0.12s
Grip Deluxe
Speed Scout Grip – Marathon Grip mod
Speed Scout Grip
Ads Speed +0.12sAds Spread -0.04°
Magazine Deluxe
Drum Mag – Marathon Magazine mod
Drum Mag
Magazine Size +33
Magazine Deluxe
Feather Mag – Marathon Magazine mod
Feather Mag
Magazine Size +12Reload Speed -0.72s
Magazine Deluxe
Hollow-Case Rounds – Marathon Magazine mod
Hollow-Case Rounds
Magazine Size +12Range +5Reload Speed -0.12s
Magazine Deluxe
Reloader Mag – Marathon Magazine mod
Reloader Mag
Magazine Size +10Reload Speed -0.31s
Magazine Deluxe
Stabilizing Mag – Marathon Magazine mod
Stabilizing Mag
Magazine Size +24Recoil -31.1%
Magazine Deluxe
Steady Rounds – Marathon Magazine mod
Steady Rounds
Magazine Size +15Recoil -12.5%
Optic Deluxe
Midsight Optic – Marathon Optic mod
Midsight Optic
Ads Spread -0.08°Ads Zoom +0.4Moving Inaccuracy -36.4%
Optic Deluxe
Rangefinder Optic – Marathon Optic mod
Rangefinder Optic
Ads Spread -0.14°Ads Zoom +0.6Moving Inaccuracy -9.1%
Optic Deluxe
Shortwave Scout Optic – Marathon Optic mod
Shortwave Scout Optic
Ads Spread -0.06°Ads Zoom +0.1
Optic Deluxe
SP Scope II – Marathon Optic mod
SP Scope II
Increases zoom and ADS accuracy
Optic Deluxe
Thermal Optic – Marathon Optic mod
Thermal Optic
Ads Spread +0.04°Ads Zoom +0.4
Optic Deluxe
Vigilant Lens – Marathon Optic mod
Vigilant Lens
Ads Speed -0.07sAds Spread -0.26°Ads Zoom +0.7
Barrel Enhanced
Precision Barrel – Marathon Barrel mod
Precision Barrel
Ads Speed -0.14°Range +2
Barrel Enhanced
Steady Barrel – Marathon Barrel mod
Steady Barrel
Recoil -9.3%
Barrel Enhanced
Suppression Dampener – Marathon Barrel mod
Suppression Dampener
Ads Spread -0.02°Recoil -15.8%
Barrel Enhanced
Weighted Barrel – Marathon Barrel mod
Weighted Barrel
Aim Assist +0.1°Moving Inaccuracy -19.1%
Chip Enhanced
Afterburner – Marathon Chip mod
Afterburner
Sliding with this weapon reloads a portion of your magazine and increases stability and accuracy by a moderate amount. Ballistic weapons reload from reserves. Volt weapons reload a smaller portion.
Chip Enhanced
Alternating Current – Marathon Chip mod
Alternating Current
Restore a moderate amount of health or shields when damaging a target affected by EMP.
Chip Enhanced
Background Process – Marathon Chip mod
Background Process
When this weapon is stowed, it automatically reloads after a significant period of time.
Chip Enhanced
Battle Runner – Marathon Chip mod
Battle Runner
Eliminations with this weapon grant increased sprint speed for a moderate duration.
Chip Enhanced
Bits Per Second – Marathon Chip mod
Bits Per Second
Rapid precision hits temporarily increase stability and reload speed by a moderate amount.
Chip Enhanced
Bounty Hunter – Marathon Chip mod
Bounty Hunter
Eliminating UESC pays you a small amount credits.
Chip Enhanced
Chaos Theory – Marathon Chip mod
Chaos Theory
Dealing a considerable amount of sustained damage causes hostiles to drop a random ammo.
Chip Enhanced
Circuit Tracers – Marathon Chip mod
Circuit Tracers
Eliminations with this weapon reload the magazine by a moderate amount.
Chip Enhanced
Cloudborn – Marathon Chip mod
Cloudborn
While in smoke, reloading this weapon overflows the magazine by a moderate amount.
Chip Enhanced
eyes on fire – Marathon Chip mod
eyes on fire
Quickly after deactivation of a tactical or trait ability, eliminating a hostile grants a moderate amount of tactical and trait ability energy.
Chip Enhanced
Five Finger Discount – Marathon Chip mod
Five Finger Discount
Eliminating UESC or downing Runners with a melee or knife attack partially reloads this weapon by a moderate amount.
Chip Enhanced
Insomniac – Marathon Chip mod
Insomniac
While under the effects of Energy Amp, eliminating hostiles with this weapon extends its duration by a massive amount.
Chip Enhanced
Insurance Plan – Marathon Chip mod
Insurance Plan
While under the effects of a Mechanic's Kit, or OS Debug, defeating a hostile moderately extends its duration.
Chip Enhanced
Insurrection – Marathon Chip mod
Insurrection
The weapon deals moderately increased damage against UESC forces.
Chip Enhanced
Keyboard Warrior – Marathon Chip mod
Keyboard Warrior
Eliminations grant stacks of bonus accuracy and range for a moderate duration. Item slightly improves the reload speed of all weapons.
Chip Enhanced
Last Resort – Marathon Chip mod
Last Resort
While you are Overheated, non-precision damage is increased by a moderate amount.
Chip Enhanced
Mini Jammer – Marathon Chip mod
Mini Jammer
While aiming down sights for a moderate duration, you gain the Signal Jammer effect.
Chip Enhanced
Motionsense Chip – Marathon Chip mod
Motionsense Chip
Motion detection chip that enhances target tracking and awareness.
Chip Enhanced
Optimal Prime – Marathon Chip mod
Optimal Prime
Dealing damage quickly after your prime ability ends grants you the effects of Energy Amp for a moderate duration.
Chip Enhanced
Ornithologist – Marathon Chip mod
Ornithologist
After aiming down sights for a brief duration, projectile impacts create a distracting bird call.
Chip Enhanced
Rocket Start – Marathon Chip mod
Rocket Start
Eliminating a hostile shortly after sprinting grants you the effects of Cardio Kick for a significant duration.
Chip Enhanced
Rorschach Test – Marathon Chip mod
Rorschach Test
While surrounded by hostiles, reloading overflows the magazine by a moderate amount. Ballistic weapons overflow reserves. Volt weapons generate a smaller portion to overflow.
Chip Enhanced
Slip Protocol – Marathon Chip mod
Slip Protocol
While moving, this weapon's stability and accuracy increase by a moderate amount.
Chip Enhanced
Stack Overflow – Marathon Chip mod
Stack Overflow
Reloading the weapon when the magazine is empty overflows the magazine by a moderate amount. Ballistic weapons overflow from reserves. Volt weapons generate a smaller portion of overflow.
Chip Enhanced
Sucker Punch – Marathon Chip mod
Sucker Punch
Moderately increases the damage of your next melee attack after dealing damage with this weapon.
Chip Enhanced
Swarm Directive – Marathon Chip mod
Swarm Directive
Precision eliminations with this weapon spawn a few flechette seekers that heal you when damaging hostiles.
Chip Enhanced
Torch Bug – Marathon Chip mod
Torch Bug
Eliminating a hostile causes them to explode. Slightly improves weapon reload time on all weapons.
Chip Enhanced
Trigger Discipline – Marathon Chip mod
Trigger Discipline
Grants a moderate amount of increased accuracy for the first few rounds of a trigger pull.
Grip Enhanced
Sturdy brace grip – Marathon Grip mod
Sturdy brace grip
Increases Stability.
Magazine Enhanced
Balanced Mag – Marathon Magazine mod
Balanced Mag
Slightly increases magazine size and reload speed.
Magazine Enhanced
Cloudfeather Chamber – Marathon Magazine mod
Cloudfeather Chamber
Slightly increases magazine size and reload speed.
Magazine Enhanced
Combat Mag – Marathon Magazine mod
Combat Mag
Standard combat magazine for ballistic weapons.
Magazine Enhanced
Stabilizing Mag – Marathon Magazine mod
Stabilizing Mag
Magazine Size +12Recoil -11.6%
Optic Enhanced
Far Reach Optic – Marathon Optic mod
Far Reach Optic
Slightly increases zoom and ADS accuracy.
Optic Enhanced
Rangefinder Lens – Marathon Optic mod
Rangefinder Lens
Shield Enhanced
Balanced Shield – Marathon Shield mod
Balanced Shield
Equip Speed +0.2sWeight -3%
Shield Enhanced
Control Shield – Marathon Shield mod
Control Shield
Recoil -10%
Chip Standard
Background Process – Marathon Chip mod
Background Process
When this weapon is stowed, it automatically reloads after a significant period of time.
Chip Standard
Bounty Hunter – Marathon Chip mod
Bounty Hunter
Eliminating UESC pays you a few credits.
Chip Standard
Chaos Theory – Marathon Chip mod
Chaos Theory
Dealing a significant amount of sustained damage causes hostiles to drop a random ammo.
Chip Standard
Cloudborn – Marathon Chip mod
Cloudborn
While in smoke, reloading this weapon overflows the magazine by a small amount.
Chip Standard
Endless Runner – Marathon Chip mod
Endless Runner
While under the effects of Cardio Kick, eliminating hostiles with this weapon extends its duration by a small amount.
Chip Standard
Eyes on Fire – Marathon Chip mod
Eyes on Fire
Quickly after deactivation of a tactical or trait ability, eliminating a hostile grants a moderate amount of tactical and trait ability energy.
Chip Standard
Heatsink – Marathon Chip mod
Heatsink
Dealing sustained damage with this weapon reduces your generated heat by a small amount amount.
Chip Standard
Insurance Plan – Marathon Chip mod
Insurance Plan
While under the effects of a Mechanic's Kit or OS Debug, defeating a hostile significantly extends its duration.
Chip Standard
Insurrection – Marathon Chip mod
Insurrection
This weapon deals slightly increased damage against UESC forces.
Chip Standard
Opportunist – Marathon Chip mod
Opportunist
While shields are depleted, shots on hostile targets have a small chance to return ammo to the magazine.
Chip Standard
Optimal Prime – Marathon Chip mod
Optimal Prime
Dealing damage quickly after your prime ability ends grants you the effects of Energy Amp for a moderate duration.
Chip Standard
Ornithologist – Marathon Chip mod
Ornithologist
After aiming down sights for a brief duration, projectile impacts create a distracting bird call.
Chip Standard
Rocket Start – Marathon Chip mod
Rocket Start
Eliminating a hostile shortly after sprinting grants you the effects of Cardio Kick for a short duration.
Chip Standard
Stack Overflow – Marathon Chip mod
Stack Overflow
Reloading this weapon when the magazine is empty overflows the magazine by a small amount.
Chip Standard
Sucker Punch – Marathon Chip mod
Sucker Punch
Slightly increases the damage of your next melee attack after dealing damage with this weapon.
Chip Standard
Swarm Directive – Marathon Chip mod
Swarm Directive
Precision eliminations with this weapon spawn a moderate amount of flechette seekers that heal you when damaging hostiles.
Chip Standard
Torch Bug – Marathon Chip mod
Torch Bug
Eliminating a hostile causes them to explode.
Chip Standard
Trigger Discipline – Marathon Chip mod
Trigger Discipline
Grants a small amount of increased accuracy for the first few rounds of a trigger pull.
Magazine Standard
Combat Mag – Marathon Magazine mod
Combat Mag
Standard combat magazine for ballistic weapons.
About Marathon Weapon Mods

Marathon Weapon Mods

Weapon mods in Marathon let you tweak how each gun performs. There are 7 mod slot types: Barrel, Chip, Generator, Grip, Magazine, Optic, and Shield. Each mod changes specific weapon stats, and not every mod works with every weapon, so the available options depend on the gun you're building. There are currently 138 mods in the game, and each one lists which weapons it's compatible with and what stats it changes. You can plan your full mod setup using our Complete Loadout Builder to see how different combinations affect your weapon before committing in-game.

Frequently Asked Questions

What are weapon mods in Marathon?

Weapon mods are attachments that change your gun's stats. Each mod belongs to a specific slot type (Barrel, Chip, Generator, Grip, Magazine, Optic, or Shield) and modifies things like damage, range, recoil, or reload speed depending on the mod.

Can every weapon use every mod?

No. Each mod is only compatible with certain weapons. When you click on a mod, you can see which weapons it works with. The number of compatible weapons varies per mod.

How many weapon mod types are there?

There are 7 mod slot types in Marathon: Barrel, Chip, Generator, Grip, Magazine, Optic, and Shield. Each weapon has its own set of available slots, and you fill them with compatible mods to customize your build.

How does MarathonDB get its mod data?

We test every mod in-game and record the stats by hand. We don't rely on a Bungie API, everything here was manually verified.

Can I submit corrections or missing mods?