M-9 Tempest Submachine Gun
 In-Game Description
This submachine gun fires in long deadly bursts. Very effective against shields and biotic barriers. Inaccurate at long range. Weak against armor. Upgrades the Shuriken Machine Pistol. The commonality of kinetic barriers has led to increased demand for rapid-fire weapons like the Tempest. Produced by Elanus Risk Control Services for the Eclipse mercenary band, the Tempest is an expensive but deadly addition to anyone’s personal arsenal.
The M-9 Tempest Submachine Gun is acquired during the mission to recruit Tali. The gun is lying beside a radio. Mae sure to pick up the weapon before the radio, so as to make sure you do not miss it. Every class with the exception of the Soldier can use the Tempest.
 Squad Member Usage
The following squad members may use the M-9 Tempest Submachine Gun:
|M-3 Predator • M-6 Carnifex|
|M-4 Shuriken • M-9 Tempest • M-12 Locust|
|M-23 Katana • M-27 Scimitar • M-300 Claymore • M-22 Eviscerator|
|M-92 Mantis • M-97 Viper • M-98 Widow • M-29 Incisor|
|M-8 Avenger • M-15 Vindicator • M-76 Revenant • Geth Pulse Rifle • Collector's Assault Rifle|
| M-100 Grenade Launcher • ML-77 Missile Launcher • M-622 Avalanche • M-920 Cain|
Collector Particle Beam • M-490 Blackstorm • M-451 Firestorm