Rey's brain is a quest item in Fallout: New Vegas.


It is one of three possible replacement brains for Rex in the quest Nothin' But a Hound Dog. If it is used as a brain for Rex, he will have an increase in attack power.


It can be bought from Old Lady Gibson at Gibson scrap yard for 700 caps (free with a Barter check of 70). This item can also be gained by simply killing Old Lady Gibson's dog Rey yourself and taking it off of its body.

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