Polar Star Fusion Engine G36 G36C G36K H&K Airsoft Nozzle Blue
The Polar Star air nozzles come in different bore diameters allowing players to change their FPS for different occasions.
The user can easily shift the velocity adjustment up or down depending on FPS and or target range.
Blue Nozzle ratings with different barrel lengths (FPS may vary depending upon bucking and PSI output):
275MM = 380 FPS.
380MM = 405 FPS.
509MM = 435 FPS.