v2 Nozzle for AD5X (this is sometimes called a bare hotend) 

Includes: Nozzle of selected size (1 pcs)
*Quad pack includes four nozzles (one of each size)

Fits: 
Flashforge AD5X
Flashforge Guider 4

 IMPORTANT  These are v2 nozzles, they do not fit older v1 AD5X printers. 
If you current nozzle looks the same the ones pictured above, than these nozzle will work. However, if you current nozzle looks different, you will most likely need to upgrade to the v2 heatsink.
If you are not sure, feel free to email us a picture of your current nozzle and we can let you know what version you have.