The all-time bestselling Wii pistol is the Perfect Shot gun. There are several other pistols available for any type of shooting game. They even have a motion plus pistol gun kit available in black.

Perfect Shot for Wii (Colors May Vary)	Wii Motion Plus Pistol Gun Kit – Set of 2	Wii Crossfire Integrated Remote Pistol
2 Nintendo Wii Perfect Shot Guns	Wii Dual Trigger Gun	Wii Gun w/built-in Controller
Wii Wand Action Pack	Play Kit (Gun, Pool Cue, Fishing Rod) for Wii	Wii Power Shooter Controller with Vibration Feedback
Resident Evil Magnum Blaster and Knife Set	Wii Magnum Gun	Wii Perfect Shot Light Gun – 2pcs Bundle
Nintendo Wii Light Gun for Remote Control and Nunchuk	Wii Sharp Shot	Wii Rayman Raving Rabbids Plunger Gun