M-23 Katana Shotgun
 In-Game Description
Common military shotgun. Deadly at short range, but ineffective at long range. Very effective versus shields and biotic barriers, but weak versus armor. Manufactured by Ariake Technologies, the Katana is a common mercenary weapon, and is also popular on colonies with Varren infestations.
The M-32 Katana is the default Shotgun the player acquires during the game. The player gains the weapon during the mission to Freedom's Progress. Initially only the Soldier and Vanguard classes are the able to use Shotguns. During the mission to the Collector Cruiser, all other classes are given the opportunity to specialize in using Shotguns.
 Squad Member Usage
The following squad members may use the M-23 Shotgun:
|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