I just noticed that you said primer who cares about it in the primer. Primer is kind of like a pre top coat test. FYI I tried to use the FL3 gun when I painted my last car and ended up switching back to my silver with purple Harbor freight gun I couldn't get the FL3 gun to shoot worth a crap. I use this one with very good results it shoots alot better that the FL3 in my opinion. http://www.harborfreight.com/professiona..._campaign=4710a