RetroArms CNC Adjustable Air Seal Nozzle – 21mm to 23mm Piston Heads Dual O-ring system ensures tight

Dual O-ring system ensures tight air seal

precise control

and long-lasting durability for Airsoft AEG gearbox builds

Material: ERGAL (7075-T6 Aluminum)

RetroArms CNC Adjustable Air Seal Nozzle – 21mm to 23mm Piston Heads Dual O-ring system ensures tighthe RetroArms CNC Adjustable Air Seal Nozzle (21mm23mm) is a game changing upgrade for advanced airsoft techs who demand perfect air seal tuning. This precision engineered nozzle allows fine adjustments in length to match your cylinder head, hop up chamber, and AEG platform, improving feeding reliability, compression, and FPS consistency. Crafted from CNC machined aluminum, this nozzle features a built in O ring and an internal spring loaded system