A good cheap spray gun depends on whether you mean automotive paint spray gun, garden weed sprayer gun, or household cleaning spray gun, but for automotive painting on a budget, several affordable options perform surprisingly well. For car painting, the Harbor Freight Central Pneumatic and Black Widow line are popular cheap options, with Black Widow HVLP gravity feed around 100 to 150 dollars offering good atomization for basecoat and clearcoat, and Central Pneumatic 20 oz HVLP for around 30 to 50 dollars being a decent entry-level gun for primer and small jobs. TCP Global, Devilbiss StartingLine, and Astro Pneumatic also make cheap HVLP guns under 80 dollars that get good reviews for DIY auto painting. For garden weed spraying, a cheap spray gun wand replacement from Chapin or Solo for under 30 dollars works well. Features to look for in a cheap paint spray gun include HVLP design for less overspray, 1.3 to 1.4 mm tip for base and clear, adjustable fan and fluid controls, gravity feed cup, and stainless steel passages for easy cleaning. While cheap guns may not match professional SATA guns costing 500 plus dollars, they can produce good results with proper technique, thinning, and cleaning. So good cheap spray gun for auto is Black Widow or Devilbiss StartingLine, and for garden is Chapin poly wand.
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