Doing Bodywork on my own car need some assistance. Please

If you go for the Harbor Freight HVLP gun, get the more expensive one (66222) and not the cheaper 47016. Sometimes the 66222 goes on sale for $20, which is when I got mine. Also, even though it says 1.4 tip on the site, when I was in the store, some had 1.4 others had I think it was 1.6. It's my cheapest gun, but I like it for the price, it seems decent enough.

Okay thanks! How did you like it? I just want it to shoot epoxy primer and 2k primer. Also can you get a bigger tip for it or no? What psi was good for you with this gun?