The Stun Gloves is a craftable item, created using any types of gloves and by following these steps:

Take gloves into a hand
Use gloves on charged Power Cell.

Stun Gloves act in exactly the same way as regular Gloves and are indistinguishable from normal gloves, but they have one extra characteristic: they allow a Player to stun their target once. Mode must be set to Harm for gloves to work.