Rapid Fire

Rapid Fire is an attachment exclusive to submachine guns in Call of Duty: Modern Warfare 2, Call of Duty: Black Ops and Call of Duty: Modern Warfare 3. It is the replacement for Double Tap and has exactly the same effect; the delay between shots is decreased by one-fourth, effectively increasing the weapon's rate of fire by one-third.

Call of Duty: Modern Warfare 2
Rapid Fire is unlocked when the Marksman I challenge is completed for any SMG. Obtaining 30 kills with the Rapid Fire attachment will unlock the Akimbo attachment.

Applicable Weapons

 * MP5K
 * UMP45
 * Vector
 * P90
 * Mini-Uzi

Call of Duty: Black Ops
Rapid Fire is available for all SMGs, costing. It is the same as its Modern Warfare 2 counterpart. It is the only way that base damage-per-second can be increased in any way in Call of Duty: Black Ops due to the removal of the Stopping Power perk, and is therefore very popular on most SMGs.

Applicable Weapons

 * Uzi
 * MP5K
 * Skorpion
 * AK74u
 * MAC11
 * PM63
 * MPL
 * Spectre
 * Kiparis

Call of Duty: Modern Warfare 3
Rapid fire is set to make an appearance in "Modern Warfare 3", shown here at 0:18, shown attached to a PP90M1. It is also available for the MP5, PKP Pecheneg, UMP45, and M16A4. When put on the M16A4 it reduces the time in between each burst. It appears to be available for Submachine guns, Light Machine Guns and Assault Rifles.

Call of Duty: Modern Warfare 2

 * In Modern Warfare 2, Rapid Fire's Create-a-Class icon is also used as an emblem unlocked for completing the challenge "Mach 5."

Call of Duty: Black Ops

 * In Black Ops, Rapid Fire shares the same Create-a-Class icon as the Full-Auto Upgrade attachment for the CZ75.
 * The Death Machine power-up in Zombies looks like the Rapid Fire attachment symbol.
 * Rapid Fire cannot be used with Extended Mags, Dual Wield, or Dual Mag via Warlord in Black Ops, probably for balancing purposes.