The Laser Pistol is a secret weapon obtained in Silent Hill: Homecoming. Once the player achieves the game's UFO Ending, the laser pistol can be found in the Shepherd House, in Alex and Joshua Shepherd's room. It's described as being small, yet effective. Thanks to its infinite ammo and rapid rate of fire, this indeed holds true. This weapon also has the word "KONAMI" written across its side.
The laser pistol is the only weapon in Alex's inventory that is not taken or removed, save for when Alex is locked in jail. The laser also respawns automatically in Alex and Joshua's bedroom.
The laser pistol also appears to be modeled after the Konami Justifier lightgun for the PlayStation.