Handgun

Handguns (which include pistols or revolvers and are also referred to as side arms) are a type of secondary weapon in the Call of Duty series. Handguns usually have moderate stopping power and are able to pull off many shots in quick succession. Lower caliber handguns usually have higher magazine capacities, while the higher caliber handguns are louder, have more recoil and a smaller magazine capacity. In general, semi-auto pistols are less powerful than revolvers.

Compared to other weapons, handguns can be drawn the fastest, and switching to a sidearm is always faster than reloading. When aiming down the sights they have the fastest ADS time, have no zoom, and they retain full "look/aim" movement speed when doing so.

Call of Duty and Call of Duty: United Offensive

 * M1911
 * Luger
 * TT33 (United Offensive only)
 * Webley (United Offensive only)

Call of Duty 2

 * M1911
 * Luger
 * Webley
 * TT33

Call of Duty 3

 * Colt .45
 * Walther P38

Call of Duty: World at War (Nintendo DS)

 * M1911
 * Webley
 * Luger
 * Nambu
 * Tokarev TT-33

Sounds
Video:Black Ops - Pistol SoundsPistol sounds

Call of Duty: Modern Warfare 3: Defiance

 * USP .45
 * M9
 * Desert Eagle

Trivia

 * Tactical Knife kills do not count towards the prestige challenges, but they do count for the marksman challenges.
 * Call of Duty 4: Modern Warfare, Call of Duty: Modern Warfare 2, Call of Duty: Black Ops, and Call of Duty: Modern Warfare 3 are the only games where handguns have available attachments.
 * There are no sidearms in Call of Duty: World at War: Final Fronts.
 * In Call of Duty: Modern Warfare 3, there is a glitch where when using the Akimbo attachment on Handguns, if one were to empty all ammunition leaving one shot in the right, and only right pistol, then press the L2, R2, and Triangle buttons at the same time, the left pistol will break it's firecap and immediately empty all ammo in less than a 1/4 of an in-game second, faster than what a RF controller can reproduce. Confirmed by IW and Sledgehammer. (Confirmed on the PS3 and Xbox 360 versions)
 * Call of Duty: Modern Warfare 3 is the first and so far only Call of Duty game to feature two revolvers, the MP412 and the .44 Magnum.
 * After a recent hotfix on Modern Warfare 3, it is possible to kill another player with a single shot from a pistol if they get shot in the foot.
 * Modern Warfare 3 features the most handguns of all Call of Duty series.