Heather Mason, the player character, picks up the 92FS Centurion with wooden grips from the floor of a clothing shop in the Central Square mall. It has a ten round magazine capacity, wood grips, and the ability to mount a sound suppressor looted from a corpse entombed in a concrete pillar. Douglas Cartland, a private investigator hired to find Heather, uses a similar weapon, but never fires it onscreen in the game. The handgun is the only firearm in the game that the player must obtain.
Colt SAA
Used only by a few monstrous Nurses in Brookhaven Hospital, this revolver is used rather inexpertly (but nonetheless lethally) by those monsters, and cannot be obtained by the player. The Nurses can only fire it slowly at Heather, but never need to reload. Contrary to its name, the Bulletproof vest item will not actually stop rounds fired from this weapon at Heather. If Heather closes to melee range with a revolver-wielding Nurse, the Nurse will try to pistol-whip Heather instead.
Handgun Ammunition
Boxes of ammunition for the Beretta 92FS Centurion are the most common ammunition pickup scattered throughout the game. They normally provide 10 rounds to a box, unless the "Bullet Adjust" option (which is a multiplier for ammunition found ingame) is set higher than one in the game's options menu.
Shotguns
Remington Model 870
The Remington Model 870, referred to simply as the "Shotgun," makes a return from Silent Hill 2 and is first picked up in an opened gift-wrapped box in the subway level. Heather can then commandeer this grisly "gift" and blast monsters away with its buckshot. It has a sawn-off barrel, no iron sights, a tube magazine capacity of six rounds, and, for some reason, can be completely reloaded by inserting a single shell into the magazine. Keeping in line with most video game shotguns, it has enormous stopping power up close and is capable of knocking monsters down with a well-timed blast, but shotgun ammunition is fairly rare in this game. Like James Sunderland from Silent Hill 2, Heather does not properly shoulder the weapon and thus can only fire it slowly as she struggles with the weapon's recoil from every shot.
Shotgun Ammunition
Boxes of shotgun ammunition are an uncommon sight throughout the game. Each contains 6 rounds, unless the game's Bullet Adjust option is higher than one.
Submachine Guns
MAC-10 Dressed Up As Uzi
The first fully-automatic weapon ever implemented in a Silent Hill game. The Submachine Gun can be found in the basement of Brookhaven Hospital near a bloodied wheelchair, the barrel still warm from its recent use. It has a 32 round magazine capacity and can use the sound suppressor as well, which would imply that it shares a caliber with the handgun since suppressors are manufactured for specific calibers to be effective. An unlockable version with unlimited ammunition is available as a bonus item.
Though not terribly effective for most enemy encounters anyway, the decision to include a fully-automatic weapon was still criticized by some game reviewers as placing too much emphasis on firepower within a survival horror game, and to date this game remains the only Team SilentSilent Hill title to give the player control of a fully-automatic weapon; however, Silent Hill 4: The Room has an unlockable MAC-11 submachine gun as a weapon for a friendly NPC.
Other
Flamethrower
Essentially a submachine gun that projects a stream of flame. It has unlimited ammunition.