Dual Mags

The Dual Mags (shortened from "Dual Magazines") is a weapon attachment which appears in Call of Duty: Black Ops. It is available for all assault rifles except the M14 and the G11. It is also available for the AK74u, the MPL, and the RPK. The Dual Mags attachment also appears in Call of Duty Online.

Overview
Dual Mags decreases the time needed for every odd reload (e.g. first, third, fifth, and so on) by using two magazines taped together. The following reload will be the normal reload and take the normal amount of time. The odd reload depicts the player removing the spent magazine, flipping it around, and inserting the second, fresh magazine.

With the exception of the RPK, the attachment also gives the player two extra starting magazines when the player spawns. For example, the FAMAS, with a magazine size of 30, starts with 90 reserve rounds normally, but with Dual Mags it starts with 150 reserve rounds.

Since it speeds up reload times and provides more ammo, it reduces the need for Sleight of Hand and Scavenger, but using either or both perks can increase the immediate usefulness of this attachment. However it should be noted that Dual Mags used with Scavenger Pro does not grant any extra ammunition that is already provided by the perk. Overall, it is a strong attachment choice as it opens up tier 1 and 2 slots to other perks such as Flak Jacket and Hardened to maximize the potential of the player's loadout. For balance purposes, this attachment cannot be paired with Extended Mags or Rapid Fire via Warlord.

Assault Rifles

 * M16
 * Enfield
 * Famas
 * Galil
 * AUG
 * FN FAL
 * AK-47
 * Commando

Submachine Guns

 * AK74u
 * MPL

Light Machine Guns

 * RPK

Zombies
The Dual Mags attachment only appears in Zombies on the upgraded Commando (Predator). It performs exactly as in multiplayer, speeding up every odd reload.

Trivia

 * There is a glitch that allows every reload to be using the dual mags reload (or the standard reload, depending on how the glitch is done). If the player reload cancels their weapon, then the reload will remain the same as long as the player keeps on using this technique when reloading,
 * In Call of Duty: World at War, the Extended Mags attachment for the MP40 is titled "Dual Magazines" but it just adds the ability to use two magazines as one on the MP40, therefore doubling capacity.
 * Taped magazines appear on most Assault Rifles and SMGs in Black Ops II when using the Fast Mag attachment, however it is purely cosmetic and every reload is sped up whether or not a loaded magazine is taped to the empty one, unlike Dual Mags.