To win a war, you need weapons, and if you want to purchase them in Mass Effect 3, you need credits or find them as loot. This Mass Effect 3 Weapons Locations guide goes over all the places where you can find these guns.
Spending credits on the regular weapons that can be found for free during different missions is a waste of the precious resource.
If you are having difficulty in spotting these weapons, then the following guide will help you in finding them. For more help on Mass Effect 3, read our War Assets, Armor Locations and Armor Sets Guide.
Mass Effect 3 Weapons Locations
Following are the weapons you can use against your enemies in Mass Effect 3, listed by category.
Assault Rifles
M-8 Avenger
Location. You will get this weapon during Prologue.
M-15 Vindicator
Location. During Priority: Mars mission, before you enter the archive chamber, head inside the security room off the main path to find the weapon.
M-96 Mattock
Location. During Grissom Academy Investigation mission, you will find the weapon after you leave the classroom in the hallway.
Phaeston
Location. Tuchanka: Turian Platoon mission, when you come across some dead Turians, look beside the bodies to find this rifle.
M-76 Revenant
Location. You can have the weapon after coming across the engineer. Take him out and search the rest room for the weapon.
Geth Pulse Rifle
Location. During Priority: Geth Dreadnaught mission, when you get into the control room, the rifle can be found on the shelf.
M-99 Saber
Location. You will get this weapon during Priority: Horizon mission.
M-37 Falcon
Location. You will get this weapon during Priority: Cerberus HQ mission.
Pistols
M3 Predator
Location. This will be your first weapon during Prologue.
Scorpion
Location. During Priority: Sur’Kesh mission, when Mordin asks you to reactivate the elevator power source. Look for it on the floor.
M-5 Phalanx
Location. During Priority: Tuchanka mission, the weapon can be found on the ground just before the Reaper starts shooting the laser at you.
M-358 Talon
Location. You will get this weapon during Priority: The Citadel mission. In C-Sec HQ, from the dark hallway, you will find one office locked. To open it, follow the path to the console. Once the door is unlocked, you can grab your weapon from inside the room.
M-6 Carnifex
Location. Arrae: Ex-Cerberus Scientists side-mission is the time when you get this weapon. You can find the weapon in the maintenance hallway before you can climb the ladder.
Arc Pistol
Location. It can be obtained during Priority: Geth Dreadnought mission. You can see the weapon being delivered to Tali.
M-77 Paladin
Location. It can be bought from the Spectre Requisitions store for 200,000 currency
Mass Effect 3 Submachine Guns
M-4 Shuriken
Location. During Priority: Mars mission, you can find the weapon in the security room where Liara also works.
M-9 Tempest
Location. During Tuchanka: Turian Platoon mission, you will find the weapon deep inside the caves before you climb the ladder after defeating the enemies.
M-25 Hornet
Location. During Priority: Citadel mission, when you take the elevator above, the weapon can be found to the right side to find it.
M-12 Locust
Location. You will get this weapon during Priority: Horizon mission. Explore the right wing of the early lab to find the M-12.
Sniper Rifles
M-92 Mantis
Location. During Priority: Mars mission, when you climb down the ladder, explore the nearby section to find the weapon.
M-97 Viper
Location. You will find the weapon during Priority: Palaven mission. Look for the weapon on the boxes placed in the center of the Turian camp.
M-13 Raptor
Location. Priority: Sur’Kesh mission is the time when you acquire this weapon. The weapon can be found on a bench where Mordin asks you to reset the elevator power source.
M-29 Incisor
Location. During Tuchanka: Bomb side mission, after the first enemy wave zone, you will soon spot the weapon on a ramp.
M-98 Widow
Location. Priority: Thessia mission is the time when you acquire this weapon.
Black Widow
Location. It can be bought from the Spectre Requisitions store for 250,000 currency.
Javelin
Location: It is lying on the ground near a checkpoint during the Sur’Kesh main quest. It can also be bought at Batarian State Arms store
Mass Effect 3 Shotguns
Disciple
Location. You can find this weapon on the ground near the Great Hall area during the Kallini: Ardat-Yakshi Monastery side quest.
Geth Plasma
Location. You can find this weapon on a shelf inside the observation point during the Rannoch main quest.
Great Spike Thrower
Location. You can find this weapon on the ground near the destroyed part of the road during the Tuchanka main quest. You can also buy this weapon from the Cipritine Armory store.
M-11 Wraith
Location. It can be bought from the Spectre Requisitions store for 250,000 currency.
M-22 Eviscerator
Location. You can find this weapon in the corridor to the left of the area where the first large battle with Cerberus units takes place during the Grissom Academy: Emergency Evacuation side quest. You can also buy this weapon at the Batarian State Arms store.
M-23 Katana
Location. Depending on Shepard’s class you may receive this weapon automatically at the beginning of the quest or you’ll be forced to find it later on during the Mars main quest.
M-27 Scimitar
Location. You can find this weapon lying on the ground near one of the exits from the first turian campsite during Palaven main quest.
You can also buy it from the Kassa Fabrication store.
M-300 Claymore
Location. You can find this weapon lying on a bed inside a small barrack located near the landing site during the Rachni main quest.
Unique Weapons
Mass Effect 3 has many unique weapons that can be found during specific missions but cannot be added to your Inventory.
Unique Weapons are listed below:
- Geth Spitfire
- Laser Designator
- M-451 Firestorm
- M-560 Hydra
- M-920 Cain
- Reaper Blackstar
