Sparmax GP-850 Airbrush (SP-GP-850) – 0.5mm Pistol Trigger, 125cc Cup, Fan & Round Air Caps

The GP-850 is a spray gun rather than a detail airbrush — Sparmax's own box names it that way. A 125 ml cup, a pistol trigger and interchangeable spray caps put it at the far end of the bench from a 7 ml detail tool. It's what you pick up for a large surface: an RC body shell, a big-scale model, or a wall, where the fan pattern earns its place by laying an oval rather than a circle. Round cap sprays a 3–50 mm circle; the fan cap lays down a 25–63 mm oval with little overspray. The fan cap needs a compressor that can supply at least 1.2 cfm — check yours before relying on it. Uses replaceable PTFE needle packing, and carries Sparmax's five-year warranty (wear parts excluded).