After many email requests with Umarex USA, they finally sent me the parts list and the schematic diagram for the .22 Notos. So here they are in PDF format and I hope that it will be useful to some of you especially about the o'ring sizes.
View attachment Notos parts list.pdf
View attachment Notos Diagram.pdf
View attachment Notos parts list.pdf
View attachment Notos Diagram.pdf