Optics provide an alternative for a weapon's built-in sights (aka iron sights). Some sights merely elevate the user's sightline or otherwise increase peripheral vision, and often provide a reticle for improved aim. Scopes use lenses to magnify vision for long-range engagement. One thing to note is that different optics have different aim and acquisition speeds.
Many accessories can be mounted on a modular rail system such as the MIL-STD-1913 rail, commonly known as the Picatinny rail. Prior to this, attachments were often custom-designed for specific weapons.
A modern weapon often has four such rails, a top rail for optics, a bottom rail for underslung weapons or stability attachments, and side rails for other devices.
In certain games, parts of a firearm can be swapped out, such as the barrel or muzzle brake.
Accessories by gameEdit
The Assault kit uses an underslung grenade launcher instead of hand grenades.
Battlefield: Bad Company 2Edit
Specializations are introduced, some of which provide accessories for the player's weapons. Alternate ammunition is available for shotguns and grenade launchers.
Prior to Bad Company 2, all sniper rifles used scopes.
Accessories are given their own system, and are unlocked via progression with individual weapons. Weapons can have up to three attachments:
- Sights and scopes
- Underslung rail or stability accessory
- Side rail device or barrel improvement
Scopes are now optional on sniper rifles, to offset the new scope glint mechanic.
BF3 also reintroduces the mortar, with various types of ammunition.
- So far, all Battlefield games merely zoom in the player's view when a scope of any magnification is used. Sniper scopes may also block off vision outside of the scope. This limit's the player's peripheral vision, and is likely kept for game balance purposes.