Just this was always a good reference page for arcade guns and accessory.
The web page is not reachable for 2 weeks anymore, but over google cache you can
still find traces, as here the list of Mame shooters with gun support :
http://webcache.googleusercontent.com/search?q=cache:k7pG-YmzbIkJ:www.arcadeguns.com/index.php%3Fmain_page%3Dindex%26cPath%3D35_36+&cd=4&hl=en&ct=clnk&gl=lu&client=firefox-b-d
