GSI Creos Mr. Airbrush PS-275 0.3mmGSI Creos Mr. Airbrush Procon Boy WA Double Action Pistol Trigger Type 0. 3mm PS 275 The GSI Creos Mr. Airbrush Procon Boy WA PS 275 is a double action, trigger type gravity feed airbrush made in Japan (formerly Gunze). Built for smooth control and daily reliability, its a great choice for primers, top coats, and everyday painting, with a needle travel adjustment for consistent, repeatable results. Key Features Double action pistol trigger type