CNC Aluminum Double O-Ring Air Seal Airsoft Nozzle (21.00mm)

check it out here: https://amzn.to/3XQvSL6

• 21.00mm nozzle increases air flow. Adds FPS to overall muzzle velocity 
• High quality and long lasting. CNC crafted single piece enhances durability 
• Compatible with the version 2 gearbox. Keeps a tight air seal with the hop up bucking 
• Two pre-installed O-rings located inside air nozzle. Double O-ring air nozzle provides an excellent seal 
• NOT a part or component. NOT for real weapons. No parts are designed for real weapons. This is only for Airsoft Use.