"Because one barrel ain't enough, and two is too few." is a red text modifier on weapons in Borderlands 2
Found on the following red text weapon: Thre Dog, (or any other version of the Bandit made Dog Shotguns) which you get as a drop from Assassin Rouf from the mission Assassinate the Assassins in Southpaw Steam & Power
Grants Weapon Effects[edit]
Fires three rounds at the same times (But consumes 3 ammo per shot)
Cultural Reference[edit]
Text is based off a quote from Fallout 3: "Because one dog ain't enough and two is too low, it's me, Three Dog"