Buy a quaility gun at the auto paint store and have it for life. Your'll use again if you own it and your'll never be sorry you bought a decent gun. I have several Sharpe guns.

I have never understood why someone would use a cheap gun to apply primer then think they will use a good one to apply the color especially when spraying sealer. It's what's under the color that's makes a paint job. And good equipment does make a big difference.