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For the unique weapon appearing in Fallout Shelter, see Destabilizer (Fallout Shelter).
Gametitle-FO3 MZ
Gametitle-FO3 MZ

The Destabilizer is an energy rifle of alien origin which is added to Fallout 3 with the add-on, Mothership Zeta. It is the unique version of the alien disintegrator.


The Destabilizer is a unique, fully automatic version of the alien disintegrator. Per shot, the Destabilizer is much weaker than it appears to be, deals less damage and has a slower reload speed than an alien atomizer. Like an assault rifle, the Pip-Boy displays an accurate total of damage per second, not per shot. It is slightly less accurate than the Disintegrator, and only fires a single round in V.A.T.S., despite being automatic. This, coupled with a higher AP cost, makes the Destabilizer a poor weapon for heavy V.A.T.S. usage.


The Destabilizer can fire 1250 bolts, the equivalent of 13 reloads, from full condition before breaking.



Weapon name (current weapon is highlighted)Icon gunDamage per attack (damage per projectile)Icon damageDamage per secondIcon dpsAttacks per secondIcon attackCritical Chance % multiplierIcon chanceCritical damageIcon critical damageAction Point costIcon actionDamage per action pointIcon dapWeapon spreadIcon spreadMagazine capacity (shots per reload)Assault carbine extended magazinesDurability (number of attacks before breaking)Icon repairWeightIcon weightValue in capsIcon merchantValue to weight ratioIcon ratio
Alien disintegrator fo3mzGametitle-FO3 MZ65
Destabilizer fo3mzGametitle-FO3 MZ30


This weapon is found in the weapons lab's shooting range, after beaming up from the space walk and proceeding through the observation deck. It is in the same room as where the Xenotech Expert perk is obtained. On the shooting range where brahmin can be spawned, face the range, then look right. The Destabilizer should be on a low shelf. It is the only item on that shelf. Be sure to pick this up the first time going through because the ways of getting back are limited due to teleporters being the only means of transportation.


  • pcIcon pc Like its normal counterpart, the Destabilizer has a Small Guns icon when assigned to a hotkey in the Pip-Boy. [verified]
  • pcIcon pc ps3Icon ps3 xbox360Icon xbox360 It uses the same reload animation as a plasma pistol instead of the normal reload of the alien disintegrator. [verified]