With better Weapons in the battlefield, you have better chances to win the war. Mods in Mass Effect 3 can improve the efficiency of your weapons which can come handy at crucial times during the fight and to explain how they work we made this Mass Effect 3 Weapons Mods Guide.
Mass Effect 3 Weapons Mods
Each mod can further be upgraded to level 5. You can either buy these mods by spending credits or you will find them spread across the galaxy during your adventure.
For more help on Mass Effect 3, read our Scanning Locations, Armor Locations and Romance Guide.
Assault Rifle Mods
Assault Rifle Stability Damper
The mod reduces the weapon’s kickback.
- Level 1 Upgrade: Weapon Stability +30%
- Level 2 Upgrade: Weapon Stability +40%
- Level 3 Upgrade: Weapon Stability +50%
- Level 4 Upgrade: Weapon Stability +60%
- Level 5 Upgrade: Weapon Stability +70%
Assault Rifle Magazine
As the name says, the mod increase the magazine capacity.
- Level 1 Upgrade: Rounds per Mag +40%
- Level 2 Upgrade: Rounds per Mag +50%
- Level 3 Upgrade: Rounds per Mag +60%
- Level 4 Upgrade: Rounds per Mag +70%
- Level 5 Upgrade: Rounds per Mag +80%
Assault Rifle Piercing Mod
The shot penetration is increased.
- Level 1 Upgrade: Pierce .50 meter thick objects with 60% less damage Can ignore 25% armored defense
- Level 2 Upgrade: Pierce .65 meter thick objects with 55% less damage Can ignore 35% armored defense
- Level 3 Upgrade: Pierce .80 meter thick objects with 50% less damage. Can ignore 45% armored defense
- Level 4 Upgrade: Pierce .95 meter thick objects with 45% less damage. Can ignore 55% armored defense
- Level 5 Upgrade: Pierce 1.10 meter thick objects with 40% less damage. Can ignore 65% armored defense
Assault Rifle Extended Barrel
The mod increases bullet velocity and impact.
- Level 1 Upgrade: Damage +15%
- Level 2 Upgrade: Damage +17.5%
- Level 3 Upgrade: Damage +20%
- Level 4 Upgrade: Damage +22.5%
- Level 5 Upgrade: Damage +25%
Assault Rifle Precision Scope
Increases both scoped and scope less fire accuracy.
- Level 1 Upgrade: Accuracy +15%
- Level 2 Upgrade: Accuracy +20%
- Level 3 Upgrade: Accuracy +25%
- Level 4 Upgrade: Accuracy +30%
- Level 5 Upgrade: Accuracy +35%
Assault Rifle Omni-Blade
It increases melee damage of your weapon.
- Level 1 Upgrade: Melee Damage +15%
- Level 2 Upgrade: Melee Damage +17.50%
- Level 3 Upgrade: Melee Damage +20%
- Level 4 Upgrade: Melee Damage +22.50%
- Level 5 Upgrade: Melee Damage +25%
Assault Rifle Thermal Scope
It reveals enemies through walls and smoke with a 4x optical scope and enhances stability and accuracy while zoomed.
- Level 1 Upgrade: Accuracy +15%
- Level 2 Upgrade: Accuracy +20%
- Level 3 Upgrade: Accuracy +25%
- Level 4 Upgrade: Accuracy +30%
- Level 5 Upgrade: Accuracy +35%
Note: It cannot be equipped with Precision Scope.
Assault Rifle Ultralight Materials
Superior lightweight alloys replace weapon parts, making weapon less obtrusive and easier to handle.
- Level 1 Upgrade: Weight -8%
- Level 2 Upgrade: Weight -10%
- Level 3 Upgrade: Weight -12%
- Level 4 Upgrade: Weight -14%
- Level 5 Upgrade: Weight -15%
Heavy Pistol
Pistol Melee Stunner
The melee damage is increased.
- Level 1 Upgrade: +15% Increment
- Level 2 Upgrade: +17.5% Increment
- Level 3 Upgrade: +20% Increment
- Level 4 Upgrade: +22.5% Increment
- Level 5 Upgrade: +25% Increment
Pistol Piercing Mod
The mod increases the shotgun penetration.
- Level 1 Upgrade: Pierce .50 meter thick objects with 60% less damage. Can ignore 25% armored defense
- Level 2 Upgrade: Pierce .65 meter thick objects with 55% less damage. Can ignore 35% armored defense
- Level 3 Upgrade: Pierce .80 meter thick objects with 50% less damage. Can ignore 45% armored defense
- Level 4 Upgrade: Pierce .95 meter thick objects with 45% less damage. Can ignore 55% armored defense
- Level 5 Upgrade: Pierce 1.10 meter thick objects with 40% less damage, ignore 65% armored defense
Pistol Magazine Upgrade
The magazine capacity is increased.
- Level 1 Upgrade: 40% increase
- Level 2 Upgrade: 50% increase
- Level 3 Upgrade: 60% increase
- Level 4 Upgrade: 70% increase
- Level 5 Upgrade: 80% increase
Pistol High-Caliber Barrel
The damage is increased and projectiles go wider.
- Level 1 Upgrade: Damage +15%
- Level 2 Upgrade: Damage +17.5%
- Level 3 Upgrade: Damage +20%
- Level 4 Upgrade: Damage +22.5%
- Level 5 Upgrade: Damage +25%
Pistol Scope
The accuracy of the weapon is increased.
- Level 1 Upgrade: +15% increment
- Level 2 Upgrade: +20% increment
- Level 3 Upgrade: +25% increment
- Level 4 Upgrade: +30% increment
- Level 5 Upgrade: +35% increment
Pistol Ultralight Materials
Superior lightweight alloys replace weapon parts, making weapon less obtrusive and easier to handle.
- Level 1 Upgrade: Weight -30%
- Level 2 Upgrade: Weight -35%
- Level 3 Upgrade: Weight -40%
- Level 4 Upgrade: Weight -45%
- Level 5 Upgrade: Weight -50%
Pistol Heavy Barrel
A pistol barrel that produces and withstands extreme kinetic and thermal energy but increases weapon weight by 50% points.
- Level 1 Upgrade: Damage +20%
- Level 2 Upgrade: Damage +25%
- Level 3 Upgrade: Damage +30%
- Level 4 Upgrade: Damage +35%
- Level 5 Upgrade: Damage +40%
Pistol Cranial Trauma System
Increases headshot damage.
- Level 1 Upgrade: Damage +20%
- Level 2 Upgrade: Damage +25%
- Level 3 Upgrade: Damage +30%
- Level 4 Upgrade: Damage +35%
- Level 5 Upgrade: Damage +40%
Note: It cannot be equipped with high caliber barrel or heavy barrel.
Pistol Power Magnifier
Enhances the effectiveness of tech or biotic attacks.
- Level 1 Upgrade: Damage +10%
- Level 2 Upgrade: Damage +15%
- Level 3 Upgrade: Damage +20%
- Level 4 Upgrade: Damage +25%
- Level 5 Upgrade: Damage +30%
Shotgun
Shotgun Smart Choke
The accuracy of the weapon is increased.
- Level 1 Upgrade: +30% increment
- Level 2 Upgrade: +35% increment
- Level 3 Upgrade: +40% increment
- Level 4 Upgrade: +45% increment
- Level 5 Upgrade: +50% increment
Shotgun Spare Thermal Clip
Number of spare shots are increased.
- Level 1 Upgrade: +50% more spare shots
- Level 2 Upgrade: +60% more spare shots
- Level 3 Upgrade: +70% more spare shots
- Level 4 Upgrade: +80% more spare shots
- Level 5 Upgrade: +80% more spare shots
Shotgun Shredder Mod
The shot penetration is increased
- Level 1 Upgrade: Pierce .25 meter thick objects with 60% less damage. Can ignore 25% armored defense
- Level 2 Upgrade: Pierce .35 meter thick objects with 55% less damage. Can ignore 35% armored defense
- Level 3 Upgrade: Pierce .45 meter thick objects with 50% less damage. Can ignore 45% armored defense
- Level 4 Upgrade: Pierce .45 meter thick objects with 50% less damage. Can ignore 45% armored defense
- Level 5 Upgrade: Pierce .65 meter thick objects with 40% less damage. Can ignore 65% armored defense
Shotgun Blade Attachment
The melee damage is increased.
- Level 1 Upgrade: Melee +15%
- Level 2 Upgrade: Melee +17.5%
- Level 3 Upgrade: Melee +20%
- Level 4 Upgrade: Melee +22.5%
- Level 5 Upgrade: Melee +25%
Shotgun High-Caliber Barrel
Damage is increased.
- Level 1 Upgrade: +15% increment
- Level 2 Upgrade: +17.5% increment
- Level 3 Upgrade: +20% increment
- Level 4 Upgrade: +22.5% increment
- Level 5 Upgrade: +25% increment
Shotgun Omni-Blade
Attaches an omni-blade to the weapon for increased melee damage.
- Level 1 Upgrade: Melee Damage +30%
- Level 2 Upgrade: Melee Damage +35%
- Level 3 Upgrade: Melee Damage +40%
- Level 4 Upgrade: Melee Damage +45%
- Level 5 Upgrade: Melee Damage +50%
Shotgun High-Velocity Barrel
Increases shot penetration but increases weapon weight by 50%.
- Level 1 Upgrade: +15% increment
- Level 2 Upgrade: +17.5% increment
- Level 3 Upgrade: +20% increment
- Level 4 Upgrade: +22.5% increment
- Level 5 Upgrade: +25% increment
Shotgun Ultralight Materials
Superior lightweight alloys replace weapon parts, making weapon less obtrusive and easier to handle.
- Level 1 Upgrade: Weight -8%
- Level 2 Upgrade: Weight -10%
- Level 3 Upgrade: Weight -12%
- Level 4 Upgrade: Weight -14%
- Level 5 Upgrade: Weight -15%
Sniper Rifle
Sniper Rifle Concentration Mod
Damage as well as the aim is increased.
- Level 1 Upgrade: Damage +5% and perception by 25%
- Level 2 Upgrade: Damage +7.5% and perception by 27.5%
- Level 3 Upgrade: Damage +10% and perception by 30%
- Level 4 Upgrade: Damage +12.5% and perception by 32.5%
- Level 5 Upgrade: Damage +15% and perception by 35%
Sniper Rifle Spare Thermal Clip
The number of spare shots is increased.
- Level 1 Upgrade: +50% more Spare Shots
- Level 2 Upgrade: +60% more Spare Shots
- Level 3 Upgrade: +70% more Spare Shots
- Level 4 Upgrade: +80% more Spare Shots
- Level 5 Upgrade: +90% more Spare Shots
Sniper Rifle Extended Barrel
The damage of the weapon is increased.
- Level 1 Upgrade: +15% increment
- Level 2 Upgrade: +17.5% increment
- Level 3 Upgrade: +20% increment
- Level 4 Upgrade: +22.5% increment
- Level 5 Upgrade: +25% increment
Sniper Rifle Piercing Mod
The shot penetration is increased.
- Level 1 Upgrade: Pierce .75 meter thick objects with 50% less damage. Can ignore 25% armored defense
- Level 2 Upgrade: Pierce .90 meter thick objects with 45% less damage. Can ignore 35% armored defense
- Level 3 Upgrade: Pierce 1.05 meter thick objects with 40% less damage. Can ignore 45% armored defense
- Level 4 Upgrade: Pierce 1.2 meter thick objects with 35% less damage. Can ignore 55% armored defense
- Level 5 Upgrade: Pierce 1.35 meter thick objects with 30% less damage. Can ignore 65% armored defense
Sniper Rifle Extended Scope
The accuracy is improved and it helps to spot through smoke.
- Level 1 Upgrade: +15% accuracy
- Level 2 Upgrade: +20% accuracy
- Level 3 Upgrade: +25% accuracy
- Level 4 Upgrade: +30% accuracy
- Level 5 Upgrade: +35% accuracy
Sniper Rifle Thermal Scope
It reveals enemies through walls and smoke with a 4x optical scope and enhances stability and accuracy while zoomed.
- Level 1 Upgrade: Accuracy +15%
- Level 2 Upgrade: Accuracy +20%
- Level 3 Upgrade: Accuracy +25%
- Level 4 Upgrade: Accuracy +30%
- Level 5 Upgrade: Accuracy +35%
Note: It cannot be equipped with Precision Scope.
Sniper Rifle High-Velocity Barrel
Increases shot penetration but increases weapon weight by 50%.
- Level 1 Upgrade: +15% increment
- Level 2 Upgrade: +17.5% increment
- Level 3 Upgrade: +20% increment
- Level 4 Upgrade: +22.5% increment
- Level 5 Upgrade: +25% increment
Sniper Rifle Ultralight Materials
Superior lightweight alloys replace weapon parts, making weapon less obtrusive and easier to handle.
- Level 1 Upgrade: Weight -8%
- Level 2 Upgrade: Weight -10%
- Level 3 Upgrade: Weight -12%
- Level 4 Upgrade: Weight -14%
- Level 5 Upgrade: Weight -15%
Sub Machine Gun Mods
SMG Ultralight Materials
The weight of the weapons is reduced.
- Level 1 Upgrade: -50% weight
- Level 2 Upgrade: -60% weight
- Level 3 Upgrade: -70% weight
- Level 4 Upgrade: -80% weight
- Level 5 Upgrade: -90% weight
SMG Magazine Upgrade
The magazine size is increased.
- Level 1 Upgrade: +50% increment
- Level 2 Upgrade: +60% increment
- Level 3 Upgrade: +70% increment
- Level 4 Upgrade: +80% increment
- Level 5 Upgrade: +90% increment
SMG High-Caliber Barrel
The damage of the weapon is increased.
- Level 1 Upgrade: +15% damage
- Level 2 Upgrade: +17.5% damage
- Level 3 Upgrade: +20% damage
- Level 4 Upgrade: +22.5% damage
- Level 5 Upgrade: +25% damage
SMG Heat Sink
The chance of not using the thermal clip is increased.
- Level 1 Upgrade: -25% chance
- Level 2 Upgrade: -30% chance
- Level 3 Upgrade: -35% chance
- Level 4 Upgrade: -40% chance
- Level 5 Upgrade: -45% chance
SMG Scope
The accuracy of the weapon is increased.
- Level 1 Upgrade: +15% increment
- Level 2 Upgrade: +20% increment
- Level 3 Upgrade: +25% increment
- Level 4 Upgrade: +30% increment
- Level 5 Upgrade: +35% increment
SMG High-Velocity Barrel
Increases shot penetration but increases weapon weight by 50%.
- Level 1 Upgrade: +40% increment
- Level 2 Upgrade: +45% increment
- Level 3 Upgrade: +50% increment
- Level 4 Upgrade: +55% increment
- Level 5 Upgrade: +60% increment
SMG Recoil System
Increase weapon mass for a split second per shot by using an expert timing-VI to reduce weapon kick and improve aim.
- Level 1 Upgrade: +30% stability
- Level 2 Upgrade: +40% stability
- Level 3 Upgrade: +50% stability
- Level 4 Upgrade: +60% stability
- Level 5 Upgrade: +70% stability
Power Magnifier
Enhances the effectiveness of tech or biotic attacks.
- Level 1 Upgrade: Damage +10%
- Level 2 Upgrade: Damage +15%
- Level 3 Upgrade: Damage +20%
- Level 4 Upgrade: Damage +25%
- Level 5 Upgrade: Damage +30%
