Automatic Shotgun
The Explosive Shotgun or Automatic Shotgun is a new shotgun introduced in the Grand Theft Auto IV DLC The Ballad of Gay Tony. It uses either standard buckshot or special explosive rounds. Regular shotgun shells have a red casing, and explosive shells are green. It fires in not fully automatic, but rather semi-automatically like the Combat Shotgun in GTA IV. This shotgun is based off the AA-12, holding 20 standard or explosive shells per magazine and 80 in ammo reserve.
Both variants of the AA-12 are available in Multiplayer. Armando Torres gives the player a regular version in "Corner Kids", while the Explosive Variant is received from Yusuf Amir in the mission "High Dive". After High Dive, the player can purchase explosive shells from Armando.