Mini undercarriage

[Richie Rich]

I used this as a stonechip 

http://en.roberlo.com/products/auto-body...iltex-800/

And this is the gun

https://www.google.co.za/search?q=stone+...sTaeGrM%3A

It has a large bore nozzle, and actually screws onto the stonechip can

Not sure if the stonechip is still available, but Wurth also do a good product. Best is to speak to your local paint supplier