High seal CNC Aluminum Double O-ring Air Seal Nozzle for M4 M16 Series Airsoft AEG hunting accessories
https://www.vogueparade.com/shopping/EN/100005571/1/32897989031/high-seal-cnc-aluminum-double-o-ring-air-seal-nozzle-for-m4-m16-series-airsoft-aeg-hunting-accessories//