Fallout: New Vegas Weapons

Pistols

 * 9mm Pistol
 * Virgin Mary Pistol
 * .357 Revolver
 * Weathered 10mm Pistol

Rifles

 * Anti-Materiel Rifle
 * Varmint Rifle
 * Hunting Rifle
 * Assault Carbine
 * Trail Carbine
 * Sniper Rifle
 * All-American
 * Camouflaged Rifle
 * Battle Rifle
 * Semi-Automatic Rifle
 * Cowboy Repeater

SMGs

 * Cyberpunk Cowboy SMG
 * 10mm SMG

Shotguns

 * Shotgun
 * Riot Shotgun
 * Caravan Gun
 * Sturdy Caravan Shotgun

Machine Guns

 * Light Machine Gun
 * Minigun

Laser Based

 * Portable laser beacon
 * Gatling Laser
 * Laser Rifle

Plasma Based

 * Plasma Caster
 * Plasma Pistol

Projectile

 * Grenade Machine Gun
 * Missile Launcher
 * Fatman
 * Mercenary's Grenade Rifle
 * M82 "Thumper" Grenade Launcher

Thrown

 * Dynamite
 * Frag Grenade
 * Nuka Grenade

Placed

 * C4

Wielded

 * Sledgehammer
 * Super Sledge
 * 9-Iron
 * Nail Board
 * Concrete Club
 * Machete
 * Broad Machete
 * Razor

Hand-to-Hand

 * Boxing Gloves
 * Brass Knuckles
 * Claw Glove

Thrown

 * Throwing Spear