Fallout: New Vegas Weapons

Pistols

 * .22 pistol
 * 9mm pistol
 * 12.7mm pistol
 * .357 revolver
 * Virgin Mary pistol
 * Weathered 10mm pistol

Rifles

 * Assault carbine
 * Battle rifle
 * Camouflaged rifle
 * Cowboy repeater
 * Hunting rifle
 * Semi-automatic rifle
 * Trail carbine
 * Varmint rifle

Sniper Rifles

 * All-American
 * Anti-material rifle
 * Sniper rifle

SMGs

 * 9mm SMG
 * 10mm SMG
 * Cyberpunk cowboy SMG
 * Silenced .22 SMG

Shotguns

 * Caravan gun
 * Lever-action shotgun
 * Riot shotgun
 * Shotgun
 * Sturdy caravan shotgun

Heavy Weapons

 * Light machine gun
 * Minigun

Pistols

 * Plasma defender
 * Plasma pistol

Rifles

 * Laser rifle

Shotguns

 * Multiplas rifle
 * Tri-beam laser rifle

Heavy Weapons

 * Flamer
 * Gatling laser
 * Plasma caster
 * Portable laser beacon

Projectile

 * Fat Man
 * Grenade launcher
 * Grenade machine gun
 * Mercenary's grenade rifle
 * Missile launcher

Thrown

 * Dynamite
 * Frag grenade
 * Incendiary grenade

Placed

 * C-4 plastic explosive
 * Detonator

Melee

 * 9-Iron
 * Baseball bat
 * Broad machete
 * Bumper sword
 * Cleaver
 * Concrete club
 * Machete
 * Nail board
 * Razor
 * Shishkebab
 * Sledgehammer
 * Super sledge
 * Throwing spear
 * Legion Sword

Unarmed

 * Bladed gauntlet
 * Boxing gloves
 * Brass knuckles