Fallout Wiki
Fallout Wiki

The 40mm grenade is a type of ammunition in Fallout: New Vegas.


This is a projectile that is fired from 40mm grenade launchers. They are much bigger than 25mm grenades, making them heavier and harder to fire at great speed. They deal 100 damage in a radius of 11.72 yards (10.72 meters).

Weapons using this ammunition[]


40mm grenade, incendiary[]

The 40mm incendiary grenade deals 25% less blast damage up front (but the same amount of impact damage from the grenade itself) and has a 40% smaller blast radius (7.03 yards or 6.43 meters) than the normal 40mm, but it also causes enemies to burst into flames, dealing 6 damage every second over a 15 second period. This damage cannot normally be resisted, so incendiary grenades generally work better on armored targets.

40mm grenade, plasma[]

A sub-type added with the add-on Gun Runners' Arsenal. They deal significantly more damage than a 40mm grenade, but have a slightly smaller blast radius.

Note that despite being plasma-based, this does not result in any AP reduction from Plasma Spaz.

40mm grenade, pulse[]

A sub-type added with the add-on Gun Runners' Arsenal. They deal an incredibly insignificant amount of damage (only 8 points) to targets and have a 50% smaller blast radius, but deal an extra 150 damage to robots and 60 damage to power armor.


Ammunition type- Ammunition TypeWeapons spreadWeapons spread modifier
Damage Modifier- Weapon Damage modifierBonus effectAmmo bonus effect
Damage Threshold modifier- Target Damage Threshold modifierCraftable- Ammo is craftable
Condition penalty- Weapon condition modifierPercentage chance of empty casing- Percentage change of empty casing, hull or drained cell/pack/tank
Ammunition typeDamage modifierDamage Threshold modifierCondition penaltySpread modifierBonus effectCraftablePercentage chance of empty casing
40mm grenade, standardx 1x 1x 1x 1No0% chance
40mm grenade, pulse Gun Runners' Arsenalx 0.08x 1x 1x 1+150 EMP, robots
+60 EMP power armor
x 0.5 AoE radius
No0% chance
40mm grenade, incendiaryx 0.75x 1x 1x 1+6 Fire for 15s
x 0.6 AoE radius
No0% chance
40mm grenade, plasma Gun Runners' Arsenalx 1.3x 1x 1x 1x 0.87 AoE radiusNo0% chance


Behind the scenes[]

The world model for 40mm grenades is identical to the model used for the .308 caliber round in Fallout 3.