The best spray gun to buy depends on your use case for automotive painting, house painting, or garden spraying, and your budget, but top-rated across categories include several standouts. For automotive painting for DIY and small shops, the best value professional-quality spray gun is Harbor Freight Black Widow 20 oz HVLP gravity feed spray gun, around 120 to 150 dollars, praised for excellent atomization, stainless steel passages, adjustable controls, and performance comparable to guns costing 400 dollars like Devilbiss or SATA, making it best overall for basecoat and clearcoat. For high-end professional auto painting, SATAjet 5000 and Iwata W400 are considered best premium guns. For beginner cheap auto painting, Devilbiss StartingLine kit under 100 dollars is best starter set. For house painting, Graco Magnum X5 airless paint sprayer is best overall for homeowner house painting, handling large walls and fences. For fine woodworking and cabinets, Fuji Semi-PRO 2 HVLP is best. For garden weed spraying, Chapin and Smith replacement spray guns under 30 dollars are best garden spray guns. So best spray gun to buy for most DIY auto enthusiasts is Black Widow HVLP for quality and price balance.
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