Gametitle-FNV OWB
Gametitle-FNV OWB
Are you MAD?! We can't give it a GUN! GUNS... wait, I said that already. Yes, I have THE Cyberdog Gun. With the little floppy metal ears and the curious nose sensor. Here.Dr. Borous

The K9000 cyberdog gun is a weapon in the Fallout: New Vegas add-on Old World Blues.


This weapon is actually an odd form of cyberdog, except instead of a robotic body in the image of a canine companion, a living dog's brain has been provided with a machine gun frame, utilizing .357 Magnum ammunition. Its "canine" features include two metallic "ears" mounted on top of the weapon that move like a real dog's and a sniffer mounted on the jar containing its preserved brain, allowing the gun to sense its surroundings. The metal ears also appear to move up and down faster if the gun is pointing in the direction of an enemy.

It will growl when the player has it equipped and comes into contact with enemies, whine mournfully when unequipped and bark when equipped. It also has, atypically for a machine gun, a telescopic sight (x2.43 magnification) which gives a relatively accurate aiming point and excellent precision in firing for a chain gun type weapon. When fired, the barrels reciprocate, rather than spinning like those of the minigun.

The K9000 can also detect enemies out of visual and Perception range. When the weapon and its sniffer hover in the direction of an enemy for a few seconds, it will let out a detection growl, even at extreme range or when the enemy is hidden from appearing on radar.


The K9000 cyberdog gun can fire a total of about 2495 standard rounds, the equivalent of 50 reloads, from full condition before breaking.

Ammunition typeDurability
Standard, HP & JFP249550
.38 special332967




Icon melee- Weapon name (melee or unarmed)Icon sequence- Attacks in V.A.T.S.
Icon gun- Weapon name (gun, energy or explosive)Icon action- Action point cost
Icon damage- Damage per attack (damage per projectile)Icon dap- Damage per action point
Icon dps- Damage per secondIcon spread- Weapon spread
Icon explosion- Area of effect damageAssault carbine extended magazines- Magazine capacity (shots per reload)
Icon effect- Effect damage & durationIcon repair- Durability (number of attacks before breaking)
Icon bonus effect- Bonus effectsIcon weight- Weight
Icon attack- Attacks per secondIcon merchant- Value in caps
Icon chance- Critical chance % multiplierIcon ratio- Value to weight ratio
Icon critical damage- Critical damageIcon ability- Skill required
Icon crit effect- Critical effect damage & durationIcon fist- Strength required
Icon plus- With all mods attached
Icon gunIcon damageIcon dpsIcon attackIcon chanceIcon critical damageIcon sequenceIcon actionIcon dapIcon spreadAssault carbine extended magazinesIcon repairIcon weightIcon merchantIcon ratioIcon abilityIcon fist
K9000 cyberdog gun 26
K9000 cyberdog gun Icon plus 28


  • Big MT - During the first conversation, the player character receives it from the think tanks after passing a Guns check of 50. However, if the player's Energy Weapons skill is higher than their Guns skill, they will get a second Sonic Emitter instead.
  • Without the necessary Guns skill one can be found in the X-12 research center, carried by the Y-17 master trauma harness (upgraded sonic emitter required).


  • The K9000 cyberdog gun causes certain distress in Dr. Klein, as he is afraid that the gun may attempt to "hump his chassis."
  • It is one of the rarest non-unique weapons, with a maximum of two being obtainable.
  • When received from the Think Tank after passing the Guns check of 50, if the Courier has a Guns skill of 75 or higher, they will also be given some .357 rounds with it.
  • The K9000 cyberdog gun is the only fully automatic weapon in Fallout: New Vegas that uses .357 Magnum rounds.

Behind the scenesEdit

K9 is a homophone for "canine," another word for dogs. This abbreviation is often used as a designation for police and military units specialized in using dogs.


  • PCIcon pc Playstation 3Icon ps3 Xbox 360Icon xbox360 When using a Stealth Boy with the K-9000 cyberdog gun equipped, the brain case turns yellow. [verified]
  • PCIcon pc Playstation 3Icon ps3 Xbox 360Icon xbox360 There is a bug in the V.A.T.S. animation whereby it shows the weapon ejecting 12 spent cartridge cases instead of the correct number of 3. A close inspection of the damage dealt during one V.A.T.S. round will show that the weapon will deal the correct damage of 3 rounds and 3 rounds will be properly deducted from your inventory. [verified]
  • PCIcon pc Xbox 360Icon xbox360 There is a bug that sometimes occurs after wearing it, the ammo pack will be stuck on your back. This can be fixed by restarting the game. [verified]


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