Left 4 Dead Wiki

"Laser sights here!"
The Survivors

The Laser Sight appears in Left 4 Dead 2 as a tool used to enhance the accuracy of primary weapons. The laser can be attached to any primary weapon, but not to secondary weapons.

The Laser Sight cannot be transferred to other weapons if the Survivor grabs a new gun. An example is having a Laser Sight-equipped to a Combat Rifle and picking up another Combat Rifle; the new Combat Rifle will not have a Laser Sight.


  • A Laser Sight improves most weapons considerably, but your best bet is to attach one to an AK-47 or Silenced Submachine Gun. Powerful but highly inaccurate weapons that fires fast becomes devastating when paired with Laser Sights. It also increases the accuracy of all weapons rather than just improving your aim.
    • Shotguns aren't for long-range anyway, which goes against the purpose of Laser Sights.
    • The arc of Grenade Launcher effectively makes this almost useless.
    • If the player has a hard time firing their Sniper Rifle or Hunting Rifle accurately, Laser Sights may enhance their aim.
    • For Hunting Rifle, Sniper Rifle, and Grenade Launcher, only their moving accuracy is improved.
  • Other players can see your Laser Sight even when you are behind them, making it easier for them to avoid stepping into your line of fire, which is essential in difficulties enabling friendly fire damage.
  • Laser Sights are incredibly rare. Hold on to the gun as long as you can when you have one and avoid swapping your weapon. If not all of the team have Laser Sights and a Survivor with one dies, it is a good idea to salvage the weapon to take full advantage of the sight.
  • Regrettably, you cannot attach a Laser Sight to sidearms. Only primary weapons can benefit from Laser Sights. Fortunately, this also means that you can swap your secondary weapon without losing your Laser Sight.
  • Laser Sights are incredibly useful in Realism Mode, making it much easier for Survivors to find each other without silhouettes.
  • Unlike Explosive and Incendiary shots, but similar to Foot Lockers and Ammo Piles, an unlimited number of Laser Sight upgrades can be obtained from every single pile of them, so if you find a better weapon shortly after attaching one, you can go back to upgrade your new weapon.
  • While rare to find both in a single level, the M60 benefits greatly from the addition of a Laser Sight, allowing it to land more shots, not to mention each individual shot is already deadly.
  • The Survivor Bots are capable of finding Laser Sights themselves, but are not too likely to actually announce it. In fact, they usually just take the Laser Sight and then return to the player(s) without a word. If you suddenly notice the Survivor Bots are equipped with them, it might be a wise choice to examine the area for the sights.

Behind the Scenes[]

Left 4 Dead's Laser Sight in Action.

Laser Sights were originally an upgrade in Left 4 Dead, but was unused in the final version. However, mods on the PC version allow the Survivors to use these, which lets players use the Laser Sight in Left 4 Dead.


The Laser Sight is a very rare find; players can often play most campaigns without spotting a Laser Sight at all. They can be found in all campaigns. Since the Laser Sight cannot be transferred from weapon to weapon, the ideal solution once you find one is to equip it to a weapon the player intends to keep. The only areas that will always have the Laser Sights are Whitaker's Gun Shop in "Dead Center" and under Memorial Bridge in the 3rd chapter of "Cold Stream".

Usually, if the AI Director decides to spawn one, Laser Sights will generally only appear once per campaign. However, it is possible that two will spawn. Sometimes, those two will be in separate chapters of the campaign, and other times they may appear together in the same chapter of a campaign, such as Whitaker's Gun Shop and in a tent after the Crescendo Event.

In the first level of "Dark Carnival", a Laser Sight may spawn on the motel roof near the billboard where a Hunting Rifle is found, however, Survivor Bots are unable to make their way to it without assistance because being closer to a player is a higher priority. Another example where Laser Sights are often found is in the second level of Dark Carnival near the area where Gnome Chompski is found on one of the game stalls or in the bathrooms. "Swamp Fever" also has a high chance of spawning Laser Sights if playing from start to finish.

Just like any other entity in the game, you can spawn the Laser Sight box using ent_create upgrade_laser_sight in the console, placing it on your crosshair's spot. Of course, you must first enable sv_cheats for that to happen. Unless you are doing it for testing or pure fun, this may not come in useful.


  • The Laser Sight dispenser uses a re-skinned model of a deployed ammo box.
  • If using a Sniper Rifle or Hunting Rifle, your Laser Sight will disappear if you zoom in, but will reappear after you disengage the scope.
  • The Laser Sight is the only upgrade that you can use more than once, whereas if you use the Explosive or Incendiary Ammo, you can only use it once.
  • When enabling Third Person Mode through the console there is no visible Laser Sight from the player's weapon, even though the sights can be seen on teammates' weapons. It also won't be visible if a player drops their weapon (there will only be a red dot on a wall, and only if it's close enough).
  • Oddly, there is no visible point where the laser could be coming from; it instead comes out of the flashlight on the weapon.
    • You can still use your flashlight while using a Laser Sight and it will not be turned off even if the torch itself is disabled.
  • The Laser Sight is a very rare upgrade compared to Incendiary Ammo and Explosive Ammo.
  • The Left 4 Dead Survivors at the finale of "The Passing" will always have Laser Sights on their weapons, except when they are using Pistols on various Mutations.
  • By using noclip command and flying onto the balcony where the original Survivors are on The Passing, a Laser Sight will automatically be added to the carried primary weapon.
  • If in a Versus match and you spectate a player with the Laser Sight attached in first person, the laser will move erratically when the player moves. This is due to the fact that the source of the laser is the model for the weapon, which moves when a Survivor moves.
  • In the survival maps for "No Mercy" and "The Sacrifice", it is possible for a Laser Sight to randomly spawn in place of an ammo pack. Because of this, the level can be tried a few times to get different spawned items.
  • A Laser Sight upgrade can always be found in two places: Whitaker's Gun Shop in the second chapter of the "Dead Center" campaign, as well as under Memorial Bridge in the 3rd chapter of "Cold Stream".
  • When looking closely on the side of the sights' box, "9mm" can be read.
  • The picture on the laser sight box is a M16A2, similar to the usable weapon M16 Assault Rifle found in Left 4 Dead series.
Primary Weapons
Tier 1 Chrome invert.png Chrome Shotgun / Pump invert.png Pump Shotgun / MP5 Invert.png MP5 / Mac10 invert.png Silenced Submachine Gun / Uzi invert.png Submachine Gun
Tier 2 Ak invert.png AK-47 / Icon weapon rifle desert inverted.png Combat Rifle / M16 invert.png M-16 Assault Rifle / SIG Invert.png SG 552 / Auto invert.png Auto Shotgun / Spas12 invert.png Combat Shotgun / AWSM Invert.png AWP / Hunting invert.png Hunting Rifle / Steyr Invert.png Scout / G3 invert.png Sniper Rifle
Special Tier Grenade launcher inverted.png Grenade Launcher / M60Icon.png M60 Machine Gun
Secondary Weapons
Sidearms Pistol inverted.png M1911 Pistol / Deagle invert.png Magnum Pistol / Pistol inverted.png P220 Pistol
Melee Weapons Bat invert.png Baseball Bat / Cricket invert.png Cricket Bat / Crowbar invert.png Crowbar / Axe invert.png Fireaxe / Pan invert.png Frying Pan / GolfClubIcon.png Golf Club / Guitar invert.png Guitar / Katana invert.png Katana / Knife Invert.png Knife / Machete invert.png Machete / Baton invert.png Nightstick / Icon pitchfork inverted.png Pitchfork / Icon shovel inverted.png Shovel
Special Tier Chainsaw invert.png Chainsaw
Other Weapons
Grenades Bile invert.png Bile Bomb / Molotov inverted.png Molotov Cocktail / Pipebomb invert.png Pipe Bomb
Upgrades L4D2 ammo explosive.png Explosive Ammunition / L4D2 ammo incendiary.png Incendiary Ammunition / Laser sight HUD invert.PNG Laser Sight
Fixed Weapons MMG Icon.png Heavy Machine Gun / Minigun icon.png Minigun
Usable Items Explosive Barrel HUD invert.png Explosive barrel / Fireworks icon.png Fireworks / Gas canister HUD invert.png Gas can / Oxytank icon.png Oxygen tank / Propane tank icon.png Propane tank
Special Items Cola.png Cola / Gnome icon.png Gnome Chompski
Featured in both games / L4D1-exclusive / L4D2-exclusive (Counter-Strike weapons / PC-exclusive)