Element M125 AEG Spring

Reliable and affordable spring from Element. The nominal strength of the spring indicates the expected value in m/s (meters per second) with 0.20g heavy ammunition and can be multiplied by a factor of 3.28 to reach the value in fps.

The stated nominal value is only a guideline; the effective firing power depends on the tuner's skills and the system's sealing. With correct installation, the effective value typically deviates less than 10% from the nominal value. Experience shows that the effective value is usually higher than the nominal value, which is why in case of doubt, one should always lean towards the next weaker spring. To achieve the desired muzzle velocity as optimally as possible, various components and combinations (springs, piston head, cylinder head etc.) often need to be tried. For systems with particularly good sealing (e.g., KWA G2X), significantly lower nominal values must be chosen.