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Specna Arms M90 AEG progressive spring
This expert product description was prepared by the ANAREUS.cz expert team. All rights to this unique content are bound to the anareus.cz domain.Specna Arms M90 (SPE-08-023650) is a spring for electric airsoft guns that allows the power of an AEG to be reduced to a level suitable, for example, for CQB and games in smaller spaces. Installing a weaker spring is one of the basic ways to adjust the muzzle energy of a gun to the rules of a particular playing field. The spring is made from high-quality steel wire and its ends are ground and polished. It uses progressive winding, meaning a variable pitch between individual coils. This design is intended to provide reliable spring operation, reduce wear on the gearbox mechanism and reduce the risk of the spring gradually settling. The M90 designation represents an approximate spring power rating. Theoretically, it corresponds to a muzzle velocity of around 90 m/s with 0.20g BBs, or approximately 0.81 J. However, this is not a guaranteed value. Actual muzzle velocity and energy may vary depending on the air-seal efficiency, cylinder, piston, nozzle, hop-up system, or the length and diameter of the inner barrel. The spring is suitable for most standard AEG gearboxes, such as V2 and V3. This allows it to be used in a wide range of electric airsoft guns when building a new setup or adjusting the power of an existing AEG.
Key features of the Specna Arms spring
M90 power rating
A weaker spring designed primarily for AEGs requiring lower power, such as CQB builds and guns adjusted to meet the limits of a particular playing field.
Progressive winding
Variable coil pitch is designed to provide reliable spring operation, reduce wear on the mechanism and maintain its properties over the long term.
Steel spring wire
The spring is made from high-quality steel wire and its ends are ground and polished to ensure correct seating against the spring guide and piston.
Broad AEG compatibility
Designed for most standard AEG g..






