SHS Aluminum Air Nozzle for M4/M16 AEG Series (21.45mm) - TZ0034
SHS Super Shooter CNC 7075 air nozzle for M4 AEG (21.4mm) - TZ0083
5KU - Air Nozzle for M4/M16 Series AEG (EG-CY-09)
Element - CNC Aluminum Air Nozzle M4/M16 AEG Series (4pcs/set) - IN0733
Lonex - POM Air Seal Nozzle (21mm) for M4/M16 Series AEGs - GB-02-09