PS20

The PS20 is a single shot self defence weapon that uses the pistol skill. It appears in Deus Ex.

Background
The PS20 is a disposable, plasma-based weapon developed by an unknown security organization as a next generation stealth pistol. Unfortunately, the necessity of maintaining a small physical profile restricts the weapon to a single shot.

Game item
It's hard to think of any actual use for this weapon. It has 100% accuracy but neither scope nor laser sight, so it would be difficult to use it past short range. The damage is not good enough to take out anyone without scoring a headshot. It can be used for breaking doors, though.

PS20