Some Synths and mechanical units are equipped with pulse weapons. Some pulse weapons are handheld and can be carried by Combine units, others are either stationary and / or unmanned.
Pulse weapons have a distinctive, cyan triangular muzzle flash that is likely related to their ammunition.
 Stationary weapons
The Autogun, here firing at Zombies and Headcrabs. (may be using ions instead of pulse, according to its sound file names)
The Suppression Device on the Overwatch Nexus roof.
One of the two pulse rifles mounted in Gate 5's watchtower (the same as that of the Hunter-Chopper and the Airboat).
 Within units
The Armored Personnel Carrier's pulse rifle, detail.
The Hunter-Chopper's pulse rifle as used on the Airboat. It is equipped with a zoom function; the light has been removed to allow fixing it on the boat. The model is slightly different.
The Combine Dropship container's pulse rifle, detail. Similar in appearance to the Hunter-Chopper's pulse rifle, it is also equipped with a light.
The Combine Gunship's pulse cannon, detail.
The Strider's pulse cannon, detail.
The Pulse Shield's HUD icon. This weapon was cut.
A Hunter shooting its pulse cannon at a Rebel in the second Episode Two teaser, replaced in the final game by flechettes.
 List of appearances
- Half-Life 2 (First appearance)
- Half-Life 2: Raising the Bar
- Half-Life 2: Deathmatch (Non-canonical appearance)
- Half-Life 2: Lost Coast (Non-canonical appearance)
- Half-Life 2: Episode One
- Source Particle Benchmark (Game files only) (Non-canonical appearance)
- Half-Life 2: Episode Two