Gametitle-FNV GRA
Gametitle-FNV GRA

Greased Lightning is an unarmed weapon added with the Fallout: New Vegas add-on Gun Runners' Arsenal.


Greased Lightning is a power fist variant with an extra hydraulic shock. It is powered by a nuclear battery, using the emissions from a radioactive isotope to generate electricity that greatly enhances the execution speed of its mechanism.

It appears to have a nickel black metal plating with a radiation symbol painted on the top, and three light copper colored pistons. On the fist's right side, there is a "Radiation risk" warning sign. On the left side, there are 33 tally marks.


Greased Lightning has a lower damage (DAM) value than most higher-leveled Unarmed weapons in the game. Despite this, its extremely high attack speed gives it a higher damage per-second (DPS) than most, making up for the lack of damage output. Greased Lightning is also an improved holdout weapon, so it may be snuck into casinos. It cannot accept weapon modifications like the normal GRA variant.

V.A.T.S. Special AttacksEdit

Icon attackIcon abilityIcon damageIcon actionIcon dapIcon effect
Stomp50128206.4Only on knocked down enemies
Cross7570.4203.522.5x damage to limbs
Note: Unarmed weapons do double normal damage in V.A.T.S.


Greased Lightning can successfully strike about 995 times from full condition before breaking.



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 meleeIcon damageIcon dpsIcon effectIcon bonus effectIcon attackIcon chanceIcon critical damageIcon crit effectIcon actionIcon dapIcon repairIcon weightIcon merchantIcon ratioIcon abilityIcon fist
Power fist 40
Power fist Gametitle-FNV GRA40
Power fist Icon plus Gametitle-FNV GRA48
Greased Lightning Gametitle-FNV GRA32
Industrial hand Gametitle-FNV LR50
160Ignores DR/DT3.2x140651.57995102500250757
Salt-Upon-Wounds' power fist Gametitle-FNV HH45
64.4+3Icon poison/10s1.36x145254.849562500416.7506
Saturnite fist Gametitle-FNV OWB35
Saturnite fist super-heated Gametitle-FNV OWB55
90.81.65x155+2Icon fire/5s254.459542400600555
Note: Unarmed damage is doubled in V.A.T.S.



  • Special unarmed attacks can be performed at extremely fast speeds with this weapon.
  • Due to the weapon's high attack speed and low damage, its condition decays faster.
  • Targets can fly into the air or skid across the ground when killed with the fist.
  • If the Brotherhood of Steel is hostile towards the player, Greased Lightning may be impossible to obtain. This is because Torres is set to respawn every three days. (See Torres' bug section)
  • Even if Torres is dead, the Gun Runners may not sell the power fist. This may be fixed by uninstalling, then reinstalling the add-on.

Behind the scenesEdit

"Faster than greased lightning" is an American idiom. The phrase was popular in the 50s and 60s, and refers to the weapon's high attack speed.


Power fist icon
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