Wii Accessories Gun

Does anyone have the WII Light Gun – for nintendo wii? Got some questions.?
I am buying Call of Duty 5 and as you probley know that uses machine guns. But I can only see the zapper as like a pistol shape, but have also seen pictures of a nunchuck attached to the back of this gun to make it feel more machine gun like. Heres some pictures:
Pistol shaped wii light gun:
http://www.imagecows.com/uploads/_53db-wii_light_gun_1.jpg
What I saw like a machine gun:
http://www.slipperybrick.com/wp-content/uploads/2007/09/wii-2-1-light-gun-brando.jpg
Is that second picture this:
http://www.game.co.uk/Wii/Hardware/Accessory/~r332012/GAMEware-Wii-Light-Gun/
Thank U very much if you read this, ty.
it dosent matter what it looks like the point is that you have the basic gun shape and that you can put the numb chuck in it the added handel in the back is just for show like you said.
Eagle Neptor WiiPAL Infrared Shotgun laser Wii ET-NPWG100




















