Mass Effect 2: Upgrade Locations

Submachine Gun Damage

 * On Omega, right before the assault on Archangel. There is a door you have to bypass close to the gunship.


 * During Thane's recruitment mission, just before the windy bridge.


 * Sold at Rodam Expeditions on the Citadel.
 * On Ilium at Gateway Personal Defense.
 * On Ilium at during Miranda's loyalty mission.

Heavy Pistol Damage

 * Sold at Rodam Expeditions on the Citadel.
 * Purchased on Tachanka at Fortack's database.
 * On Tali's recruitment mission on Haestrom, at the bottom of a stairwell at the first fight with the geth.
 * On the Citadel during Thane's loyalty mission, awarded automatically.
 * On Aeia during Jacob's loyalty mission, just after the barricade is destroyed with the rigged mek

Assault Rifle Damage

 * In the quarantine area on Omega, just after a barricade of mercs.


 * On Illium at Gateway Personal Defense kiosk.


 * During Zaeed's loyalty mission on Zorya, on a computer.
 * Purchased on Tuchanka at Fortack's database.
 * On Tali's recruitment mission on Haestrom, in the room blocked by the collapsed pillar.


 * During Samara's loyalty mission, on the wall in Morinth's apartment.

Shotgun Damage

 * On Omega, sold at Kenn's Salvage.
 * On Purgatory on a dead guard right after destroying the first large meck.


 * On the Derelict Reaper ship in the middle of a bunch of Scion and husk fights.
 * After Grunt's loyalty mission, awarded by the shaman automatically.
 * Purchased on Tachanka at Fortack's database.

Sniper Rifle Damage

 * On Omega, sold at Omega Market.
 * On Korlus at the top of the stair case after the waves of Krogans.


 * Sold at Rodam Expeditions on the Citadel.


 * On the Derelict Reaper ship at the end of a long catwalk where Legion snipes some husks.
 * On the Citadel during Garrus' loyalty mission, in a hackable terminal just before raising the shutters.

Biotic Damage

 * On Horizon world.
 * During Samara's recruitment mission in the small room with Elnora.
 * Purchased on Tachanka at Fortack's database.
 * On Illium at Serrice Technology kiosk.
 * On Pragia during Jack's loyalty mission, on a hackable computer right before the boss.

Tech Damage

 * On the main floor of Archangel's house during the assault.
 * Sold at Saronis Applications on the Citadel.
 * During Collector Ship Mission.
 * On Illium at Serrice Technology kiosk.
 * After Tali's loyalty mission, awarded after trial if Tali is found innocent either through Paragon/Renegade scores or by handing over evidence (and losing Tali's loyalty permanently).

Heavy Skin Weave
On a dead collector on Horizon world.

On Ilium at Gateway Personal Defense.

On the Derelict Reaper ship in a computer after fighting your first Scion of the level.

Medi-Gel Capacity

 * Complete Dr Chakwas' side mission (brandy).
 * Sold at Sirta Foundations on the Citadel.
 * Inside Mordin's clinic.
 * On Illium at Serrice Technology kiosk.
 * On Illium at during Miranda's loyalty mission, awarded automatically.

Heavy Weapon Ammo

 * On Freedom's Progress on the dead YMIR mech just outside Veetor's shack.
 * Purchased from Kenn's salvage shop on Omega.
 * During Mordin's mission on a hackable research terminal after the boss.
 * Purchased on Tuchanka at Ratch's shop.

Krogan Vitality

 * On Korlus in the same room you find Warlord Okeer.
 * On Tuchanka during Mordin's loyalty mission, in the same room as the dead female Krogan.

Damage Protection

 * On Purgatory in a destroyed YMIR mech right after freeing Jack.
 * Sold at Saronis Applications on the Citadel.
 * During Collector Ship Mission.

Geth Shield Strength

 * On a computer during Tali's loyalty mission, just after the first room.
 * During Legion's loyalty mission.