Pepper gun

"The pepper gun will accept a number of commercially available riot control agents in cartridge form and disperse them as a fine aerosol mist that can cause blindness or blistering at short-range."

- description of Pepper Gun

The Pepper Gun is a low-tech skill weapon in Deus Ex.

Background
The pepper gun can stun a target for a few seconds without causing long-term damage. It does not affect MJ-12 Commandos or monsters. It uses pepper cartridges for ammunition.

Game item
The Pepper Gun is first found near the front of the Statue of Liberty on the first mission. If not obtained there, it can be found in the MJ-12 base in Hong Kong.

Ironically, UNATCO, a so-called peace-keeping organization, almost never issues Pepper Guns.

In a pacifist/stealth run, Pepper Spray is useful if the player cannot get behind a target and there is an alarm console nearby which means that he can't use the tranquilizer darts. The prime example of such location is the Hong Kong police station. Otherwise it's just good at what it does - disabling enemies. If they're close enough, the player can disable multiple targets with a single spray.

It can also be used on certain laser-beam tripwires to bypass them without triggering them: the spray can block the beam without triggering the security device, allowing the player to crouch, spray, and slide past undetected. Unfortunately, only a minority of triggers are susceptible to this trick and there's no way to tell which ones without risking setting the trap off.