One of the new arrivals at eHobby Asia this week, this N.P.A.S.Nozzle designed by RA-Tech is a replacement for your Western Arms M4 Gas Blowback rifle and it comes with an adjustment tool. Constructed with plastic ABS, this is claimed to last longer than the stock nozzle. You can get this at eHobby Asia for US$86 more on this product in the video below.