Point M120 AEG spring

M120-level tuning spring with irregular wire density for electric airsoft guns. The irregular wire density reduces the effects of compression and extends the service life of the spring. The M120-level tuning spring provides approximately 120 m/s (1.44 J) of power with a 0.20g bullet. The final power is also affected by, among other things, other parts of the gun and the bullet weight used.