I own the old (home version) shooter "Area 51" 

I play alot of the home arcade shooting games but am at a lack of info on what to buy that is compatible with this game. My guncon 2 that i have doesnt work and i remember reading something that namco doesn't like midway.

 Could you tell me what kind of gun best works for a home purpose Area 51 game and if anywhere to find it online??? If you can't help me i would apreciate it if you could give me of a contact who could.