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Bolt gun

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Bolt gun
Production information

Improvised weapon

Technical specifications
Feed system

1-round chamber


Watasumi Expanding Bolt




The bolt gun (or boltgun) was a pneumatically-powered improvised weapon. While markedly sluggish to operate, requiring a few seconds to charge before being able to fire, the industrial hardware it fired was devastating to humans and synthetics, although had little effect on Xenomorphs.

In 2137, Sevastopol Station residents working in the station's engineering section frequently weaponized their tools, leading to a reminder not to do so being written on a white board. When Amanda Ripley came to the station searching for the USCSS Nostromo's flight recorder unit, she found a bolt gun in engineering that had been constructed by Chief.

Behind the scenesEdit

Bolt gun concept art

Bolt gun concept art.[1]

In reality, bolt gun is another name for a captive bolt pistol, which is a device used for stunning animals prior to slaughter and bears little resemblance to the weapon in Alien: Isolation. The name of the weapon in the game apparently refers to its ammunition, which seem to be anchor bolts, likely the same used by Sevastopol's engineers for repair jobs.

The khaki power pack tapped to the front of the bolt gun' grip, which can also be found unmodified in other locations in the game, is based on the battery attached to the cattle prods used in Alien, while the bolt gun's barrel was designed to resemble the cattle prod itself.[2]

In the game's files, there are two versions of the bolt gun referenced in the form of "WEAPONS_RIVETGUN" and "WEAPONS_RIVETGUN_MOD_SMG", perhaps implying that there would be an alternate version of the bolt gun the player could acquire that would fire faster.




  1. 1.0 1.1
  2. Andy McVittie. The Art of Alien: Isolation, p. 43 (2014), Titan Books.

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