Nozzle O Ring, Maschinenpistole

In order to achieve the best cost-effectiveness and performance in different temperatures, please choose the appropriate Nozzle O-ring for your Maschinenpistole GBB.

Hot Weather CO2 Nozzle O-ring: Outer diameter: 20 mm; wire diameter: 2.4 mm (Inner: 15.2 mm X 2.4 mm. This O-ring comes with UZI 50. It prevents the O-ring from over-extending and potentially causing the breech block to stick.)

Cold Weather CO2 Nozzle O-ring (the same as Green Gas Nozzle): Outer diameter: 21 mm; wire diameter: 2 mm (Inner: 17 mm x 2 mm)

All-Weather CO2 Nozzle O-ring (also suitable for Green Gas): Outer diameter: 20.7 mm; wire diameter: 2.4 mm (Inner: 20 mm x 2.4 mm. This O-ring comes with UZI 60.)