TokyoMarui A.E.G. Tune-Up Spring - SP140 View larger

GUARDER Progressive Tune-Up Spring for AEG - SP140

Guarder Progressive Spring for AEG with a stiffness of SP140 (M140).

Offers performance of 134 - 143 m/s.

Made from tempered Si-Cr wire.

Progressive (irregular) winding of the spring eases compression in the initial phase.

Performance consistency even after thousands of shots.

Fits standard TM AEG gearboxes and manual SVDs.

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14,17 € tax incl.

Availability: In Stock

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Progressive Spring for AEG by Guarder

This premium spring by Guarder is designed for electric AEGs and manual SVDs. The spring is made from tempered Si-Cr wire, ensuring its long lifespan and reliability. The progressive (irregular) winding of the spring eases compression in the initial phase, while maintaining sufficient force for optimal weapon performance. Guarder springs are performance consistent even after thousands of shots, and unlike cheap springs, their performance matches their rated stiffness.
Guarder is a renowned Taiwanese brand, known for producing quality parts. Thanks to its focus on precision and quality control, Guarder has earned a solid reputation among airsoft upgrade parts manufacturers.

Different Stiffness Levels of Guarder AEG Springs

Guarder springs are available in various stiffness levels from SP85 to SP170, offering different levels of muzzle velocity and desired performance. The resulting muzzle velocity is influenced by many factors, including proper air-seal, nozzle operation, cylinder type, barrel length, and diameter.

Spring TypeSP85SP90SP100SP110SP120SP130SP140SP150SP160SP170
Muzzle Velocity87 - 91 m/s91 - 95 m/s98 - 104 m/s104 - 110 m/s113 - 122 m/s122 - 131 m/s134 - 143 m/s143 - 152 m/s152 - 161 m/s161 - 170 m/s

Warning

When replacing the spring, make sure that the end of the spring with the denser winding is on the spring guide facing outward from the gearbox.

Key Features

  • Progressive winding:
    Eases spring compression in the initial phase, ensuring smooth operation and optimal performance.

  • High durability:
    Made from tempered Si-Cr wire, providing long lifespan and wear resistance.

  • Performance consistency:
    Springs are rated based on actual strength and provide reliable performance without inaccuracies.

Technical Specifications

  • Compatibility: AEG and manual SVD
  • Material: Tempered Si-Cr wire
ColorBlack
Muzzle velocity (m/s)140 (m/s)