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Desert Eagle

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Desert Eagle
Production information

Gas-operated semi-automatic pistol

Technical specifications
  • 34 points/hit (when fired by the player)
  • 40 points/hit (when fired by HECU Engineers and security guards)
Magazine Size

7 rounds

Maximum Ammunition

36 rounds

Ammunition Type

.357 Magnum

Rate of Fire
  • 267 RPM (without laser sight)
  • 120 RPM (with laser sight)

Perfect when laser-sighted / low when not


Short when not laser-sighted / long when laser-sighted

Used by

Other accurized weapons

Game information
Entity / spawn codes


The Desert Eagle is a weapon featured in Half-Life: Opposing Force and the first firearm acquired in the game. It is the standard sidearm for HECU soldiers and some Black Mesa security guards.


Deagle sight

An example of the laser sight on a Shock Trooper.

The Desert Eagle is a powerful sidearm that holds seven rounds of .357 ammunition. While somewhat similar to the Colt Python revolver at first glance, there is a major difference between them; the Desert Eagle has two firing modes. The first one, automatic, is the primary firing mode. It fires much faster than the .357, but is very inaccurate. The second mode is activated by hitting the alternate fire key. This activates a laser that makes the weapon as accurate as the .357, but decreases the rate of fire, although it stays faster than the .357's.

This weapon is first obtained in the middle of the chapter Welcome to Black Mesa, where a Black Mesa security guard dies by electricity shock when trying to open the generator gate near the crashed V-22 Osprey. If not obtained there, it can be acquired by killing HECU Engineers who will drop them. It is also possible to acquire it even earlier in the chapter, where the first security guard is encountered in the infirmary. Although Shephard has no weapons at this point, it is possible to hold the security door open (that the security guard opens once the PCV is acquired), by placing a (nearby) movable chair right up next to one of the doors. If done correctly, one can run around the corner to pick up the pipe wrench (where the security door would normally close to prevent back-tracking), go back and kill the security guard and take his weapon.


  • The Desert Eagle can kill anything weaker than a Bullsquid in one shot. While this may sound tempting, it is better to conserve Desert Eagle ammo for foes that require multiple Desert Eagle shots to take down, such as Shock Troopers and Pit Drones. All of the enemies that can be killed with one Desert Eagle shot can also be killed with one double shotgun blast, which has much more ammo scattered throughout the game than the Desert Eagle does.
  • The Desert Eagle works best at medium-long range, so the laser sight should be activated at all times.
  • When close to an enemy, the laser sight should be turned off. Rapid firing does more damage at close range than taking timed shots with the secondary fire mode.
  • In Hard mode, it takes around two shots to take down enemies that used to take one bodyshot, so headshots are essential for killing the enemy instantly and conserving ammo.
  • This weapon is extremely effective against Black Ops. It usually takes about two aimed shots to defeat one Black Ops soldier in Normal mode, and the Desert Eagle can engage them at long range, a range in which Black Ops' weapons are less effective.


  • In older versions of Opposing Force, the Desert Eagle's laser sight can be used to redirect a rocket fired with the RPG, and vice versa.
  • It can clearly be seen that the Desert Eagle viewmodel has no iron sights. This may be because it uses a laser dot to aim, however it would be highly impractical for a laser sight to be the only way to aim a firearm. Interestingly, the worldmodel for the Desert Eagle has visible iron sights, which is odd considering the fact that worldmodels are generally less detailed than viewmodels.
  • It should also be noted that, in the real world, the .357 magnum version of the Desert Eagle has a 9-round magazine, as opposed to 7-rounds as depicted in the game (the .50AE version, however, does have a 7-round magazine).
  • In the Doom mod Massmouth, the Desert Eagle acts as a weapon, replacing the shotgun, delivering a high powered shot. It's sprites are simply 2D renders of the HL:OF Desert Eagle, with the fingers re-shaped and re-colored green.
  • If the Desert Eagle is shot underwater, it suffers from a glitch and cannot be fired anymore. The only known way to fix this glitch is to reload an old save.


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