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):
| Mod name | Mod icon | Mod description | Season introduced | Single use? |
|---|---|---|---|---|
| Backup Mag | 
|
Increases magazine +30 Magazine Stat |
Season 4 | No |
| Boss Spec | 
|
Increases damage against bosses and vehicles +7.77% Damage increase against Bosses and Vehicles. |
Season 4 | No |
| Counterbalance Stock | 
|
Reduces recoil deviation for the weapon. +15 Recoil Direction |
Season 4 | No |
| 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 |
| Icarus Grip | 
|
Improves accuracy while airborne. +15 Airborne Effectiveness |
Season 4 | No |
| Major Spec | 
|
Deals extra damage against powerful enemies +7.77% Damage against Elites and Minibosses |
Season 4 | No |
| Minor Spec | 
|
Deals extra damage against rank-and-file enemies +7.77% Damage against Rank-And-File |
Season 4 | 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 |
| Taken Spec | 
|
Increased damage against Taken enemies +10% Damage against Taken Combatants |
Season 4 | No |
| Targeting Adjuster | 
|
This weapon gains better target acquisition +5 Aim Assist |
Season 4 | No |
| Dragonfly Spec | 
|
Increases the damage and radius of Dragonfly +50% Damage and Radius for Dragonfly explosions |
Season 5 | No |
| Quick Access Sling | 
|
Increases this weapon's ready and stow speed 0.9x Ready/Stow Animation Duration Multiplier |
Season 5 | No |
| Radar Booster | 
|
Slightly increases the range at which radar detects enemies Maximum Radar Distance increased by 8 metres |
Season 5 | No |
| Rampage Spec | 
|
Increases duration of Rampage Rampage lasts 1 second longer |
Season 5 | 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 |
| 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 |
| Adept Blast Radius | 
|
+10 Blast Radius | Season 12 | No |
| 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 |
| Adept Counterbalance | 
|
Greatly improves recoil direction at the cost of range +35 Recoil, -10 Range |
Season 12 | No |
| Adept Handling | 
|
+10 Handling | Season 12 | No |
| Adept Impact | 
|
+10 Impact +5 Impact |
Season 12 | No |
| Adept Mag | 
|
Greatly increases magazine at the cost of handling +35 Recoil Direction, -10 Range |
Season 12 | No |
| Adept Projectile Speed | 
|
+10 Projectile Speed +10 Velocity |
Season 12 | No |
| Adept Range | 
|
+10 Range | Season 12 | No |
| Adept Reload | 
|
+10 Reload | Season 12 | No |
| Adept Stability | 
|
+10 Stability | Season 12 | No |
| Adept Targeting | 
|
Greatly increases target acquisition at the cost of stability +10 Aim Assist, -15 Stability |
Season 12 | No |
| Adept Big Ones Spec | 
|
Deals extra damage against powerful combatants, bosses, and vehicles +7.77% Damage against Elites, Minobosses, and Bosses |
Season 13 | No |
| Adept Icarus Grip | 
|
Improves accuracy while airborne; Slightly increases weapon range +15 Airborne Effectiveness, +5 Handling |
Season 13 | No |
| Sweaty Confetti | 
|
Causes a festive celebration on each precision final blow. This cosmetic mod is consumed when inserted into a weapon. | Season 15 | 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:
| Name | Icon | Description | Armor type |
|---|