Yes I was told you can buy the needle/nozzle for the NEO BCN at .5mm I have the CN and one thing you need to know is the nozzle is super small and the threads appear to be very fragile I've yet to strip them but it seems it's only a matter of time. the bigger the nozzle the wider the pattern and the larger the paint atomization is in most cases, the farther away from your work the bigger the pattern but you risk the paint drying before it hits the work I use bigger nozzles for heavy body paints, pearls, craft paints and primer/base coats and the like but mainly stick with .3mm to .38mm for finish work.