That Gun - Found on Cliff Briscoe when you ask him to open up his inventory.
This Machine - Given by Contreras at the McCarran Airport if he isn't turned in (and after finishing sidequest Dealing With Contreras) or Liuetenant Boyd if he is.
Maria - A unique 9mm gun that is found on Benny. Can be collected if you kill him.
La Longue Carbine - Found on Corporal Sterling at McCarran Airport. If not it is most likely that he and First Recon can be found at Camp Forlorn Hope.
Dinner Bell - Given by Red Lucy at the Thorn after completing the quest Bleed Me Dry.
All-American - Found in Vault 34's Armory. It is located on the right side of the area on/around an overturned table.
Missing Laser Pistol - Important to the side-quest Pistol Packing. Can be found near a corpse in Scorpion Gulch.
YCS/186 - Found at a Mercenary camp near Brook's Tumbleweed Ranch. If the player has the wild wasteland perk the mercenaries are replaced with aliens which instead yield the Alien Blaster.
AER 14 prototype - Go to the Pest Control floor of Vault 22. Head to the Staircase that leads to the common area. The AER is found next to a skeleton.
Van Graff Laser/Plasma Rifle - Given to the player after completing the quest Birds of a Feather. You can only take one or the other.
Q-35 Matter Modulator - Found in the REPCONN Headquarters behind a door that requires a lockpick skill of 100 to open.
Mercy - Found in Dead Wind Cavern by a dead Brotherhood of Steel Soldier. Guarded by many Deathclaws including the Legendary Deathclaw.
Blade of the East - Found on Legate Lanius after defeating him at the Battle of Hoover Dam. When collected you have a very limited amount of time to use it.
Chopper - Found on the stovetop in the shack of Wolf Horn Ranch.
Chance's Knife - Found in Chance's Grave in the Tribal Village North of Goodsprings. A shovel is required to open the grave.
Figaro - A unique knife that is found on Sergio in the King's School of Impersonation. Can be pickpocketed from him or obtained after killing him.
Cram Opener - Found on Little Buster. Can be looted from his corpse after killing him or by finishing Dhatri's Three-Card Bounty Mission, waiting for two game days and heading to Freeside's North Gate's Railroad Tracks.
Pushy - Found on a dead Jackal Gang member near the dry tunnel entrance in Ruby Hill Mine.
Love and Hate - Found at Bonnie Springs on a Viper Gang Leader.
Codac R9000 - Not a weapon. A camera, it is given by Michael Angelo at the beginning of the quest Classic Inspiration.
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