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"Well Russ, it's official. There is nothing left of your gun in this gun. This is just... this is my gun. "
―Alyx to Russell after fully upgrading the pistol[src]

Alyx's Pistol is a handgun appearing as Alyx Vance's trademark weapon in the Half-Life franchise. It is introduced as an unobtainable custom gun in Half-Life 2 and its episodes. It is later featured in Half-Life: Alyx as a usable weapon, starting in the form of a traditional pistol that can be upgraded throughout the game, turning it into the weapon Alyx uses in Half-Life 2.


Alyx using her gun against Zombies and Overwatch Soldiers in the hospital.

Alyx's Pistol is an average sized, easily concealed handgun with a 30-round magazine housed in the grip, and is capable of both semi-automatic (seen in Half-Life 2) and automatic fire (seen in Episode One).

Though it is unknown what kind of ammunition it fires, it does roughly the same amount of damage as the USP Match.

In Half Life 2 and its episodes, Alyx is the only NPC ever observed using this weapon, and the player never acquires it in normal gameplay. Alyx appears to have unlimited ammunition for this weapon, possibly due to her being a NPC. When she is not using it, she places it inside her jacket.

In Half-Life: Alyx, Alyx acquires the gun in its initial form (Para-Ordnance LDA) from Russell.


  • During the first two chapters of Episode One and a brief period in Episode Two, Freeman only has the Gravity Gun and has to rely on Alyx to dispatch enemies, depending on the availability of physics objects to use as ammunition. Alyx is a fairly good shot, but she must not be left to deal with with too many enemies by herself, as she can be overwhelmed and killed.
  • Alyx's pistol has the advantages of being automatic and high accuracy (even better than the MP7 or the OSIPR when used by Rebels); at longer ranges Alyx has little trouble to handle most enemies and rarely gets killed due to most enemies having poor accuracy combined with her own health regeneration.
    • On the downside, it has low damage, a problem can be when engaging a high health enemy or enemies who are in groups, in fact the firepower is quite insufficient at closer ranges and enemies armed with weapons like the shotgun or the MP7 can sometimes outgun her weapons especially if they are in pair. Alyx often requires assistance from other allies; protecting her is necessary.

Related achievements

Half-Life: Alyx

Achievement Up in Arms.jpg
Up in Arms
Install your first pistol upgrade.


In Half Life: Alyx, Alyx's Pistol has 4 upgrades from its original form recieved from Russell:

  • Reflex Sight: costs 10 Resin. Adds a yellow holographic sight that is projected above the barrel. Weak points of enemies are highlighted when viewed through the sight.
  • Burst Fire: costs 20 Resin. Adds a togglable three-round burst mode. Double-tapping the magazine release button switches between single and burst-fire modes.
  • Bullet Reservoir: costs 30 Resin. Adds a reservoir off the side of the weapon that holds an additional 10 bullets. When inserting a magazine into the weapon when empty, the reservoir will draw the bullets into the gun and out of the magazine, holding up to a maximum of 10. The then-empty magazine can then be replaced with a full one, resulting in an effective 20 rounds of available ammunition in the weapon.
  • Laser Sight: costs 35 Resin. Adds a red laser that is projected off the side of the weapon.

When initially obtaining the weapon from Russell, he remains adamant that the gun is his, and has only been loaned to Alyx for the heist. After upgrading the weapon twice, Alyx states that it should be called "our gun" and upon receiving all 4 upgrades, she declares to Russell that she has modified it enough to warrant calling it her gun, which Russell finds reasonable.


  • In Episode One and Episode Two, Alyx's gun must be manually picked up by pressing "USE" key; walking over it will not work.
  • When the player spawns a Civil Protection with Alyx's gun, the gun won't inflict damage, and there is no sound when they fire it. However if player spawns a Resistance member with one, they do inflict damage, but only female rebels can fire the gun in automatic mode. When used by male rebels, they fire the gun in semi-automatic mode and will run away when they approach Headcrabs and Zombies as if they were unarmed (Citizens have "fear" relationships to zombies, and male citizens do not have strafing animations for pistols).
  • Alyx's Pistol in Half-Life 2 doesn't have its own firing sound. Instead, it uses the firing sound of the USP Match. Each time Alyx fires her gun, the captions will read [Pistol Sound]. In Episode One and Two, Alyx's Pistol has its own unique firing sound, which appears be more suppressed and silent. The subtitle will no longer appear when she fires it. If the player uses Alyx's Gun in Episode One and changes the firing mode to semi-automatic and fires it, one can hear a three round burst sound effect of the MP7 but it only shoots one bullet at a time.
  • When Alyx is aiming or shooting, her gun's magazine will go through her hand, likely because Alyx's Gun uses the same animations as the USP Match.
  • In the playable Half-Life 2 Beta as in the retail Half-Life 2, the weapon can be spawned and used by the player, suggesting it was to be used by the player at some point. The viewmodel is however missing and the weapon will improperly appear on the left of the screen as the worldmodel. Furthermore ammunition does not exist, although it can be overridden with the console code "sk_max_alyxgun #", which sets the maximum ammo. Default maximum amount is 150.
  • In the Half-Life 2 files, several texture files for HUD weapon icons can be found, most of which still containing the icons for almost all of the cut weapons. Alyx's Gun is among them, giving more clues about a possible original use by the player.
  • Closer look at the model's animations in the Source SDK show it can be converted to both a rifle and a submachine gun, having a retractable stock, front folding grip and extended barrel with a suppressor, never seen in-game.
  • During the elevator ride with Mossman in Black Mesa East, one of the Rebels working on the generators with the Vortigaunts is holding Alyx's Pistol in his right hand.
  • In Half-Life 2, Alyx's Gun appears to be custom-made from parts that come from USP .45 and the PM-63 (with a possibility that an M1911 was used for the pistol grip).
    • Half-Life: Alyx indeed reveals that the gun's original appearance is a Sci-fi modified version of the Para-Ordnance LDA, an M1911 derivative.
  • The ammo's HUD icon is reused from the beta MP7's ammo icon.
  • The model for Alyx's Pistol in Half-Life: Alyx is an asset recycled from development on the cancelled Half-Life 2: Episode Three.[1]


Half-Life 2 and its Episodes

Half-Life: Alyx

List of appearances