Iwata Airbrush Replacement Part I-701-5 Needle Cap .4mm for HP-M2 Airbrush Iwata from $4.88 $6.50 Qty. Add to Cart SKU: I-701-5 This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. This is the Replacement .3mm Needle Cap for The Iwata Revolution HP-M1 Airbrush. Tweet Previous Next