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Mods are a form of upgrade in Destiny 2. They are used to boost the potency of weapon perks, change weapon stats, provide bonuses for Exotic weapons via Catalysts, and add or improve features onto a piece of Armor. Some mods can also be equipped onto Ghost shells, and provide a variety of bonuses.

Weapon mods

Weapon mods are those that can be slotted into any Legendary weapon released during or after the Forsaken expansion. Almost all of them can be used an infinite amount of times upon acquisition, but there are a few that are single use. A full list of weapon mods can be found below (any info in italics was gathered from the Community Research section of each mod on light.gg.)

The Full Auto Retrofit mod is no longer acquirable, as its functionality has been replaced by the full-auto option in the settings.

Mod name Mod icon Mod description Season introduced Single use? Currently available?
backup mag   Increases magazine
+30 Magazine Stat
Season 4 No Yes
boss spec   Increases damage against bosses and vehicles
+7.77% Damage increase against Bosses and Vehicles.
Season 4 No No
counterbalance stock   Reduces recoil deviation for the weapon.
+15 Recoil Direction
Season 4 No Yes
freehand grip   Increases accuracy and ready speed while firing from the hip
X% increased Hipfire Accuracy; 0.95x Ready Animation Duration Scalar.
Season 4 No Yes
icarus grip   Improves accuracy while airborne.
+15 Airborne Effectiveness
Season 4 No Yes
major spec   Deals extra damage against powerful enemies
+7.77% Damage against Elites and Minibosses
Season 4 No No
minor spec   Deals extra damage against rank-and-file enemies
+7.77% Damage against Rank-And-File
Season 4 No No
radar tuner   Radar immediately returns when you stop aiming down sights
Radar immediately returns after stopping ADS (Normally takes 1.5s)
Season 4 No Yes
taken spec   Increased damage against Taken enemies
+10% Damage against Taken Combatants
Season 4 No No
targeting adjuster   This weapon gains better target acquisition
+5 Aim Assist
Season 4 No Yes
dragonfly spec   Increases the damage and radius of Dragonfly
+50% Damage and Radius for Dragonfly explosions
Season 5 No No
quick access sling   Increases this weapon's ready and stow speed
0.9x Ready/Stow Animation Duration Multiplier
Season 5 No Yes
radar booster   Slightly increases the range at which radar detects enemies
Maximum Radar Distance increased by 8 metres
Season 5 No Yes
rampage spec   Increases duration of Rampage
Rampage lasts 1 second longer
Season 5 No No
sprint grip   Temporarily increases the weapon's ready speed and aim down sights speed after sprinting
+X handling for Y seconds after sprinting for Z seconds
Season 5 No Yes
surrounded spec   Increases the damage granted by Surrounded; Bonus damage lingers for a brief time when no longer surrounded by three or more enemies
Additive 10% Surrounded Damage Increase, lingers for 1.5s
Season 5 No No
adept blast radius   +10 Blast Radius Season 12 No Yes
adept charge time   +10 Charge Time
-40ms Charge Time; does not reduce damage, unlike Charge Time MW; does not display in the stats
Season 12 No Yes
adept counterbalance   Greatly improves recoil direction at the cost of range
+35 Recoil, -10 Range
Season 12 No Yes
adept handling   +10 Handling Season 12 No Yes
adept impact   +10 Impact
+5 Impact
Season 12 No Yes
adept mag   Greatly increases magazine at the cost of handling
+35 Recoil Direction, -10 Range
Season 12 No Yes
adept projectile speed   +10 Projectile Speed
+10 Velocity
Season 12 No Yes
adept range   +10 Range Season 12 No Yes
adept reload   +10 Reload Season 12 No Yes
adept stability   +10 Stability Season 12 No Yes
adept targeting   Greatly increases target acquisition at the cost of stability
+10 Aim Assist, -15 Stability
Season 12 No Yes
adept big ones spec   Deals extra damage against powerful combatants, bosses, and vehicles
+7.77% Damage against Elites, Minobosses, and Bosses
Season 13 No No
adept icarus grip   Improves accuracy while airborne; Slightly increases weapon range
+15 Airborne Effectiveness, +5 Handling
Season 13 No Yes
full auto retrofit   Holding down the trigger will fire this weapon at full auto. Season 15 No Yes
sweaty confetti   Causes a festive celebration on each precision final blow. This cosmetic mod is consumed when inserted into a weapon. Season 15 Yes Yes

Armor mods

Armor mods are those that can be slotted onto any piece of armor released or re-released during or after the Shadowkeep expansion. They have a multitude of effects and requirements, and a maximum of 5 can be slotted onto an armor piece at a time. There are also seasonal Artifact mods, that are unlocked via the seasonal artifact and expire at the end of the current season. A full list of armor mods can be found below:

Stat Increase Mods

Name Icon Description Energy cost Season Introduced Currently available? Source
discipline mod   +10 Discipline 3 Season 20 Yes Guardian Rank 5
minor discipline mod   +5 Discipline 1 Season 20 Yes Guardian Rank 5
strength mod   +10 Strength 3 Season 20 Yes Guardian Rank 5
minor strength mod   +5 Strength 1 Season 20 Yes Guardian Rank 5
intellect mod   +10 Intellect 4 Season 20 Yes Guardian Rank 5
minor intellect mod   +5 Intellect 2 Season 20 Yes Guardian Rank 5
mobility mod   +10 Mobility 3 Season 20 Yes Guardian Rank 5
minor mobility mod   +5 Mobility 1 Season 20 Yes Guardian Rank 5
recovery mod   +10 Recovery 4 Season 20 Yes Guardian Rank 5
minor recovery mod   +5 Recovery 2 Season 20 Yes Guardian Rank 5
resilience mod   +10 Resilience 4 Season 20 Yes Guardian Rank 5
minor resilience mod   +5 Resilience 2 Season 20 Yes Guardian Rank 5

Helmet Mods

Name Icon Description Energy cost Season Introduced Currently available? Source
special ammo finder   Increases the drop chance of Special ammo upon defeat of an opponent. 3 Season 20 Yes Guardian Rank 5
special ammo scout   When one of your ammo finder perks creates a brick of Special ammo for you, it also creates bricks of Special ammo for your allies. 1 Season 20 Yes Guardian Rank 5
heavy ammo finder   Increases the drop chance of Heavy ammo upon defeat of an opponent. 3 Season 20 Yes Guardian Rank 5
heavy ammo scout   When one of your ammo finder perks creates a brick of Heavy ammo for you, it also creates bricks of Heavy ammo for your allies. 1 Season 20 Yes Guardian Rank 5
dynamo   Reduces Super cooldown when using your class ability near targets. 3 Season 8 Yes Guardian Rank 5
ashes to assets   Gain bonus Super energy on grenade kills. 3 Season 8 Yes Guardian Rank 5
hands-on   Gain bonus Super energy on melee kills. 3 Season 8 Yes Guardian Rank 5
power preservation   Your Super final blows create extra Orbs of Power for your allies. 3 Season 20 Yes Guardian Rank 5
radiant light   Casting your Super causes nearby allies to also increase their current Armor Charge by 1. Allies that have a different Super element than you increase Armor Charge by 2. 1 Season 11 Yes Guardian Rank 7: Threats and Surges
powerful friends   Collecting an Orb of Power causes nearby allies to increase their current Armor Charge by 1. 1 Season 9 Yes Guardian Rank 7: Threats and Surges
font of wisdom   You gain a bonus to intellect while you have any Armor Charge. Armor Charges decay over time. Collecting an Orb of Power causes you to gain 1 temporary Armor Charge. 3 Season 13 Yes Guardian Rank 7: Threats and Surges
harmonic siphon   Rapid weapon final blows with damage matching your super damage type create an Orb of Power. 1 Season 16 Yes Guardian Rank 6: Powerful Rewards
kinetic siphon   Rapid Kinetic weapon final blows create an Orb of Power. 2 Season 16 Yes Guardian Rank 6: Powerful Rewards
arc siphon   Rapid Arc weapon final blows create an Orb of Power. 3 Season 16 Yes Guardian Rank 6: Powerful Rewards
solar siphon   Rapid Solar weapon final blows create an Orb of Power. 3 Season 16 Yes Guardian Rank 6: Powerful Rewards
stasis siphon   Rapid Stasis weapon final blows create an Orb of Power. 3 Season 16 Yes Guardian Rank 6: Powerful Rewards
strand siphon   Rapid Strand weapon final blows create an Orb of Power. 3 Season 20 Yes Guardian Rank 6: Powerful Rewards
void siphon   Rapid Void weapon final blows create an Orb of Power. 3 Season 16 Yes Guardian Rank 6: Powerful Rewards
in-flight compensator   Increases the airborne effectiveness of all equipped weapons. 3 Season 24 Yes Default
harmonic targeting   Improved target acquisition, accuracy, and aim-down-sights speed for weapons that match your Supers damage type. 2 Season 20 Yes Guardian Rank 6: Powerful Rewards
kinetic targeting   Improved target acquisition, accuracy, and aim-down-sights speed for Kinetic weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Rewards
arc targeting   Improved target acquisition, accuracy, and aim-down-sights speed for Arc weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Rewards
solar targeting   Improved target acquisition, accuracy, and aim-down-sights speed for Solar weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Rewards
stasis targeting   Improved target acquisition, accuracy, and aim-down-sights speed for Stasis weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Rewards
strand targeting   Improved target acquisition, accuracy, and aim-down-sights speed for Strand weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Rewards
void targeting   Improved target acquisition, accuracy, and aim-down-sights speed for Void weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Rewards
kinetic charge siphon   Rapid Kinetic weapon final blows create an Orb of Power. Rapid Arc weapon final blows create an Orb of Power. 3 Season 24 Yes Hunter's Journal
kinetic thermal siphon   Rapid Kinetic weapon final blows create an Orb of Power. Rapid Solar weapon final blows create an Orb of Power. 3 Season 24 Yes Hunter's Journal
kinetic entropy siphon   Rapid Kinetic weapon final blows create an Orb of Power. Rapid Void weapon final blows create an Orb of Power. 3 Season 24 Yes Hunter's Journal
arc/strand siphon combo   Rapid Arc weapon final blows create an Orb of Power. Rapid Strand weapon final blows create an Orb of Power. 3 Season 21 No NPA Repulsion Regulator
thermodynamic siphon   Rapid Stasis weapon final blows create an Orb of Power. Rapid Solar weapon final blows create an Orb of Power. 3 Season 23 No Queensfoil Censer
void/strand dual siphon   Rapid Void weapon final blows create an Orb of Power. Rapid Strand weapon final blows create an Orb of Power. 3 Season 20 No Ascendant Scepter
solar/strand dual siphon   Rapid Solar weapon final blows create an Orb of Power. Rapid Strand weapon final blows create an Orb of Power. 3 Season 20 No Ascendant Scepter

Arm Mods

Name Icon Description Energy cost Season Introduced Currently available? Source
fastball   Increases grenade throw distance. 1 Season 20 Yes Guardian Rank 5
firepower   Your grenade final blows create Orbs of Power. 3 Season 9 Yes Guardian Rank 5
momentum transfer   Causing damage with a grenade reduces your melee cooldown. 2 Season 20 Yes Guardian Rank 5
bolstering detonation   Grants class ability energy when you cause damage with a grenade. 2 Season 20 Yes Guardian Rank 5
grenade kickstart   Collecting an Orb of Power causes you to gain 1 temporary Armor Charge. When your grenade energy is fully expended, your Armor Charge is consumed and you gain grenade energy for each Armor Charge used. 3 Season 20 Yes Guardian Rank 7: Threats and Surges
font of focus   Collecting an Orb of Power causes you to gain 1 temporary Armor Charge. You gain a bonus to discipline while you have any Armor Charge. Your Armor Charge now decays over time. 3 Season 20 Yes Guardian Rank 7: Threats and Surges
heavy handed   Your powered melee final blows create Orbs of Power. 3 Season 9 Yes Guardian Rank 5
impact induction   Causing damage with a powered melee attack reduces your grenade cooldown. 2 Season 20 Yes Guardian Rank 5
focusing strike   Grants class ability energy when you cause damage with a powered melee attack. 2 Season 20 Yes Guardian Rank 5
melee kickstart   Collecting an Orb of Power causes you to gain 1 temporary Armor Charge. When your melee energy is fully expended, your Armor Charge is consumed and you gain melee energy for each Armor Charge used. 3 Season 20 Yes Guardian Rank 7: Threats and Surges
font of vigor   Collecting an Orb of Power causes you to gain 1 temporary Armor Charge. You gain a bonus to strength while you have any Armor Charge. Your Armor Charge now decays over time. 3 Season 20 Yes Guardian Rank 7: Threats and Surges
shield break charge   Breaking a combatant's shield with the matching damage type grants you Armor Charge. 4 Season 20 Yes Guardian Rank 7: Threats and Surges
harmonic loader   Increases reload speed of weapons that match your Super damage type. 2 Season 20 Yes Guardian Rank 6: Powerful Friends
kinetic loader   Increases reload speed of Kinetic weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
arc loader   Increases reload speed of Arc weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
solar loader   Increases reload speed of Solar weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
stasis loader   Increases reload speed of Stasis weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
strand loader   Increases reload speed of Strand weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
void loader   Increases reload speed of Void weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
harmonic dexterity   Faster ready and stow speed for weapons that match your Super damage type. 2 Season 20 Yes Guardian Rank 6: Powerful Friends
kinetic dexterity   Faster ready and stow speed for Kinetic weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
arc dexterity   Faster ready and stow speed for Arc weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
solar dexterity   Faster ready and stow speed for Solar weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
stasis dexterity   Faster ready and stow speed for Stasis weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
strand dexterity   Faster ready and stow speed for Strand weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends
void dexterity   Faster ready and stow speed for Void weapons. 3 Season 20 Yes Guardian Rank 6: Powerful Friends

Chest Mods

Name Icon Description Energy cost Season Introduced Currently available? Source
harmonic resistance   Reduces incoming damage from combatants that matches your Super element. 1 Season 20 Yes Guardian Rank 5
arc resistance   Reduces incoming Arc damage from combatants. 2 Season 20 Yes Guardian Rank 5
solar resistance   Reduces incoming Solar damage from combatants. 2 Season 20 Yes Guardian Rank 5
stasis resistance   Reduces incoming Stasis damage from combatants. 2 Season 20 Yes Guardian Rank 5
strand resistance   Reduces incoming Strand damage from combatants. 2 Season 20 Yes Guardian Rank 5
void resistance   Reduces incoming Void damage from combatants. 2 Season 20 Yes Guardian Rank 5

Leg Mods

Name Icon Description Energy cost Season Introduced Currently available? Source

Class Mods

Name Icon Description Energy cost Season Introduced Currently available? Source

Legacy and Raid Mods

Name Icon Description Energy cost Season Introduced Currently available? Source

Ghost Mods

Experience Mods

Name Icon Description Energy cost Season Introduced Currently available? Source
flickering light   Increase XP gains by 2%. 1 Season 12 Yes Guardian Rank 2
little light   Increase XP gains by 3%. 2 Season 12 Yes Guardian Rank 2
hopeful light   Increase XP gains by 5%. 3 Season 12 Yes Guardian Rank 2
burning light   Increase XP gains by 8%. 4 Season 12 Yes Guardian Rank 2
guiding light   Increase XP gains by 10%. 5 Season 12 Yes Guardian Rank 2
blinding light   Increase XP gains by 12%. 6 Season 12 Yes Guardian Rank 2

Tracking Mods

Name Icon Description Energy cost Season Introduced Currently available? Source
combo detector   Detect caches or resources within a 40-meter range. 1 Season 12 Yes Guardian Rank 2
wombo detector   Detect caches or resources within a 50-meter range. 2 Season 12 Yes Guardian Rank 2

Economic Mods

Name Icon Description Energy cost Season Introduced Currently available? Source
meager glimmer booster   Increases Glimmer gains by 5%. 1 Season 12 Yes Guardian Rank 2
standard glimmer booster   Increases Glimmer gains by 10%. 2 Season 12 Yes Guardian Rank 2
considerable glimmer booster   Increases Glimmer gains by 20%. 3 Season 12 Yes Guardian Rank 2
prodigious glimmer booster   Increases Glimmer gains by 35%. 4 Season 12 Yes Guardian Rank 2
supercharged glimmer booster   Increases Glimmer gains by 50%. 5 Season 12 Yes Guardian Rank 2
ultimate glimmer booster   Increases Glimmer gains by 65%. 6 Season 12 Yes Guardian Rank 2
discipline armorer   Armor pieces with random stats you acquire will have a guaranteed minimum of 10 Discipline, and are more likely to drop with higher Discipline. 2 Season 15 Yes Guardian Rank 2
intellect armorer   Armor pieces with random stats you acquire will have a guaranteed minimum of 10 Intellect, and are more likely to drop with higher Intellect. 2 Season 15 Yes Guardian Rank 2
mobility armorer   Armor pieces with random stats you acquire will have a guaranteed minimum of 10 Mobility, and are more likely to drop with higher Mobility. 2 Season 15 Yes Guardian Rank 2
recovery armorer   Armor pieces with random stats you acquire will have a guaranteed minimum of 10 Recovery, and are more likely to drop with higher Recovery. 2 Season 15 Yes Guardian Rank 2
resilience armorer   Armor pieces with random stats you acquire will have a guaranteed minimum of 10 Resilience, and are more likely to drop with higher Resilience. 2 Season 15 Yes Guardian Rank 2
strength armorer   Armor pieces with random stats you acquire will have a guaranteed minimum of 10 Strength, and are more likely to drop with higher Strength. 2 Season 15 Yes Guardian Rank 2
bountiful harvest   Chance to obtain additional Glimmer when harvesting. 3 Season 12 Yes Guardian Rank 2
public defender   Increased loot from public events on all destinations. 5 Season 12 Yes Guardian Rank 2

Activity Mods

Name Icon Description Energy cost Season Introduced Currently available? Source
core harvest   Earn bonus Enhancement Cores when completing ritual activities. 1 Season 23 Yes Guardian Rank 2
prism harvest   Earn bonus Enhancement Prisms when completing ritual activities. 3 Season 23 Yes Guardian Rank 2
modularity   Achieving victory in ritual activities grants a chance to award an Upgrade Module. 3 Season 23 Yes Guardian Rank 2
prosperity   Achieving victory in ritual activities grants a chance to drop an additional piece of Legendary gear. 3 Season 23 Yes Guardian Rank 2