I wanted a Badger 400 but they haven't been made in a long time. Devilbiss makes one that looks identical to the Badger so I picked one up. It was hard to find though. I'm not impressed with it. The fit of the parts is not too good and it just feels kind of junky. I might buy a Badger yet if I find one in good shape and it feels like it's built better. This is the model off their website I'm talking about
:
EGA & EGHV Touch Up Gun | Carlisle Fluid Technologies (carlisleft.com)
You can buy cups for it direct from Badger. They were on clearance not long ago for about $5. The other option is this:
Model 115 Spray Gun | Carlisle Fluid Technologies (carlisleft.com)
I had the $15 Harbor Freight one and it worked fairly well for several years. Then one day it just quit working and I never could figure out why so I scrapped it out.
Carl