Icon disambig
For an overview of this weapon in the Fallout series of games, see Fat Man.
For the main game version of this weapon, see Fat Man (Fallout: New Vegas).
Gametitle-FNV GRA
Gametitle-FNV GRA

The Fat Man (GRA) is a weapon in the Fallout: New Vegas add-on Gun Runners' Arsenal.


This weapon is a Fat Man that has been specially constructed by the Gun Runners to accept the new variants of mini nukes: Big Kid, low yield, timed, and Tiny Tots.


The Fat Man (GRA) can fire about 495 standard mini nukes from full condition before breaking.



  • Fat Man - The standard variant.
  • Esther Gametitle-FNV GRA - A unique variant of the Fat Man.


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 explosionIcon attackIcon chanceIcon critical damageIcon actionIcon dapIcon spreadAssault carbine extended magazinesIcon repairIcon weightIcon merchantIcon ratioIcon abilityIcon fist
Fat Man 400
Fat Man Icon plus 400
Fat Man Gametitle-FNV GRA400
Fat Man Icon plus Gametitle-FNV GRA400
Esther Gametitle-FNV GRA475



  • This weapon counts towards Gun Runners' Arsenal Challenge and Overkill.
  • This is the only GRA weapon to accept standard weapons mods.
  • This is the only GRA version of a weapon that was made solely for the purpose of accepting new ammo types. This was because the standard Fat Man can only fire one type of ammo and thus lacks an unloading animation.


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