A sight is a device used to assist aligning or aiming weapons, surveying instruments, or other items by eye. They can also be optical devices that allow the user to see the image of an aligned aiming point in the same focus as the target. Iron sights are normally the default sight built into all firearms.
In all Battlefield games since Battlefield: Bad Company 2, the player can unlock and equip optical sights in place of the default weapon iron sights. These optical sights range from red dot sights to magnified rifle scopes and serve to give the shooter a better view while in ADS and aid in target acquisition. Additionally, some sights, such as high zoom rifle scopes, can only be attached to certain weapons.
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As weapon attachments have been largely grouped into individual weapon variants, none of the weapon sights in this game are given official names. The names used in this article are based on the weapon variants they are present on.
Found on Marksman variants for single-action rifles as well as Telescopic variants of light machine guns, the sight is modeled after the Warner & Swasey Model 1913 Prismatic Musket Scope. The sight offers medium-range magnification.
The Sniper Scope is only available on Sniper variants of single-action and self-loading rifles and Marksman variants for self-loading rifles. It offers the longest range of magnification. They are modeled after PPCo scopes.
A smaller version of the scope can be found mounted on the C96 Carbine in singleplayer.
In most Battlefield games, vehicles have access to unlockable imaging/target acquisition systems. Commonly, these vehicle specializations include some sort of thermal imaging upgrade or enhanced zoom upgrade to the vehicle's main sights. In games where the player can choose their vehicle loadouts, optical upgrades are often available to many different vehicle types (in some cases however, the same upgrade can have slightly different effects depending on the vehicle it is equipped to).