Call Of Duty 5 : World At War
With this attachment, the Double-Barreled Shotgun becomes more likely to deliver a one-shot kill (at close range.). However, the Double-Barreled Shotgun has a strong power and low enough range to begin with, and therefore isn't the best attachment to use (unless you constantly gain a good range of your opponent or have a perfect accuracy.)
In the Nazi Zombies campaign and the Soviet campaign, a grip is added, providing the lethality of the Sawed-Off attachment and the accuracy bonus of the Grip. Because the weapon's range is reduced however, kills must be made uncomfortably close to your enemy. Ultimately the weapon is extremely deadly, and the attachment has its uses in some situations. It can be used effectively with the Overkill perk if using a weapon that is ineffective at close range. This attachment can be somewhat overlooked though, as the range and accuracy are dangerously decreased from this attachment.