Kai: 

Weapon: Z-6 rotary cannon

Voice: 

https://youtu.be/di7tK_Iog9s

Felicity:

Weapons: DC-16 pistols

voice: 

https://youtu.be/aYxIk1oeJzg

Leela:

weapon: DC-16M Commando Blaster

voice:

https://youtu.be/RWgm-nPj6yc