From Destiny 2 Wiki
|Type||Magazines and Batteries|
|Description||This shotgun's magazine is optimized for quick combat. Greatly increases stability. Increases rate of fire.|
|Shotguns||DED Nemoris II, Retrofuturist, Hawthorne's Field-Forged Shotgun, First In, Last Out, Unification VII, Quitclaim Shotgun III, Gunnora's Axe|
Assault Mag is a Weapon Perk.