Features and Benefits: Aluminum paint cups Die cast aluminum body 2-Step trigger control Non-bleeder type gravity feed external mix Stainless steel nozzles Hvlp Spray Gun Set Triple Set-Up 4Pc Gun a - 1.0 mm Nozzle Set for touch Up Work Gun B - 1.4mm Nozzle Set for Lighter Materials Gun C - 1.7mm Nozzle Set for Heavier Materials Locking Pressure Regulator with Gauge All Guns: Aluminum Paint Cups Die Cast Aluminum Body with Chrome Plated Finish 2-Step Trigger Control Non-Bleeder Type Gravity Feed External Mix Stainless Steel Nozzles Adjustable Spray Width Air Inlet and Fluid Outlet .