M120 main spring

    M120 main spring

The main spring is designed to be used in tune ups of the electric replicas (AEGs) It is made by the well known G&G company.

In a typical system, the spring allows to fire the BB pellet with the muzzle velocity of about ~380-390 FPS. Yet it is important to remember that the final muzzle velocity gained by the mount of the spring depends on the sealness of the system, the type of the used cylinder, the length of the barrel and its diameter. The ends of the spring were grinded what results in its better operation.