Fallout: New Vegas Weapons

Pistols

 * .22 pistol
 * 9mm pistol
 * Maria
 * 12.7mm pistol
 * .357 revolver
 * .44 magnum revolver
 * Debug megapistol
 * Hunting revolver
 * Ranger Sequoia
 * That gun
 * Weathered 10mm pistol

Rifles

 * Assault carbine
 * Brush gun
 * Cowboy repeater
 * Hunting rifle
 * Marksman carbine
 * All-American
 * Semi-automatic rifle
 * This machine
 * Service rifle
 * Trail carbine
 * Varmint rifle

Sniper rifles

 * Anti-materiel rifle
 * Sniper rifle
 * Gobi Campaign scout rifle

SMGs

 * 9mm SMG
 * 10mm SMG
 * 12.7mm SMG
 * Silenced .22 SMG

Shotguns

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

Heavy weapons

 * Light machine gun
 * Minigun

Pistols

 * Alien Blaster
 * Plasma defender
 * Plasma pistol
 * Laser Pistol

Rifles

 * Gauss rifle
 * YCS/186 Gauss rifle
 * Laser RCW
 * Laser rifle
 * Plasma rifle
 * Recharger rifle

Shotguns

 * Multiplas rifle
 * Tri-beam laser rifle

Heavy weapons

 * Flamer
 * Gatling laser
 * Incinerator
 * Plasma caster
 * Euclid's C-Finder

Projectile

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

Thrown

 * Dynamite
 * Frag grenade
 * Incendiary grenade
 * Holy Frag Grenade

Placed

 * C-4 plastic explosive
 * Detonator

Bladed

 * Broad machete
 * Bumper sword
 * Chainsaw
 * Chance's knife
 * Chopper
 * Cleaver
 * Fire axe
 * Hatchet
 * Legion sword
 * Machete
 * Razor
 * Shishkebab
 * Throwing spear

Blunt

 * 9-Iron
 * Baseball bat
 * Cattle prod
 * Concrete club
 * Dinner bell
 * Dress cane
 * Nail board
 * Nephi's Golf Driver
 * Sledgehammer
 * Super sledge
 * Tire iron

Unarmed

 * Ballistic fist
 * Bladed gauntlet
 * Boxing gloves
 * Brass knuckles
 * Love and Hate
 * Deathclaw gauntlet
 * Displacer glove
 * Dog tag fist
 * Golden gloves
 * Power fist