If you decide to kill her, your karma will decrease. You can only get this weapon by killing Old Lady Gibson. Unique Guns Unique Weapon Location #1: Sawed-Off Shotgun: Big Boomer New Page: Caravan Cards and Players Locations Guide.New Page: Achievements & Trophies Guide.New Page: Hollowed-Out Rocks Locations Guide.This Page: Unique Weapons Locations Guide.Location #42 Boxing Gloves: Golden Gloves.Location #41 DogTag Fist: Recompense of the Fallen.Location #40 Bladed Gauntlet: Cram Opener.Location #39 Spiked Knucles: Love and Hate.Location #38 Zap Glove: Paladin Toaster.Location #35 Frag Grenade: Holy Frag Grenade.Location #33 Grenade Rifle: Thump-Thump.Location #32 Missile Launcher: Annabelle.Location #28 Combat Knife: Chance’s Knife.Location #27 Lead Pipe: The Humble Cudgel.Location #26 9 Iron: Nephi’s Golf Driver.Location #25 Bumper Sword: Blade of the East.Location #20 Laser Rifle: AER14 Prototype.Location #19 Plasma Rifle: Q-35 Matter Modulator.Location #18 Tesla Cannon: Tesla-Beaton Prototype.Location #14 BB Gun: Abilene Kid LE BB Gun.