Sight

A Sight is the term generally applied to the aiming mechanism on a gun, whether it be an Iron sight or a reflex sight. The default sights on many guns are plain iron sights, but there are guns (such as the AUG) which have a different sight such as a telescopic sight as the default sight.

Today, there are hundreds of different types of sight, each with its own usage. For example, for long range situations, a telescopic sight would be used. For medium-range combat, an iron sight or a reflex sight such as a Red dot sight or an ACOG Scope could be used. Before the 1960s, there were few alternate sights available for guns. During the Vietnam war, development of alternate sights began. Primitive night-vision scopes were developed and used sparsely.

Sights in Call of Duty
There are many different types of sights available in Call of Duty:

Call of Duty 1

 * Iron sight
 * Sniper Scope

Call of Duty: United Offensive

 * Iron sight
 * Sniper Scope

Call of Duty 2

 * Iron sight
 * Sniper Scope

Call of Duty 3

 * Iron sight
 * Sniper Scope

Call of Duty 4: Modern Warfare

 * Iron sight
 * Sniper Scope
 * Red dot sight
 * ACOG Scope
 * EOTech Holographic Weapon Sight

Call of Duty: World at War

 * Iron sight
 * Sniper Scope
 * Telescopic Sight
 * Aperture Sight

Call of Duty: Modern Warfare 2

 * Iron sight
 * Sniper Scope
 * Thermal Scope
 * Red dot sight
 * ACOG Scope
 * EOTech Holographic Weapon Sight
 * SUSAT
 * Mars Sight