The Graco Professional Paint Gun is a monster in the world of painting equipment with tons of cool features. The gun comes complete with Graco's signature RAC X 517 nozzle - a universal size for most painting jobs. Has the ProConnect system - no tools needed to change the cartridge! Saves time when servicing, especially when minutes count. What is really impressive is the ergonomics. The trigger adjusts to your hand thanks to the E-Z Fit system. The handle is ergonomically designed to reduce fatigue when working for long periods of time. The trigger lock works with one finger on either side - convenient for both right and left-handed users. The EasyGlide swivel connection deserves special mention: the hose does not twist and does not interfere with work.