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Marui PSG-1 Tune-Up Spring - SP 120 View larger

GUARDER PSG / AEG SR-25 Progressive Tune-Up Spring - SP120

Guarder Progressive Spring for AEG Tokyo Marui PSG and SR25 with a stiffness of SP120 (PSG120).

Offers a performance of 122 - 131 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 only extended gearboxes of type IV (PSG) and V2.5 (SR-25, CA SCAR-H, E&C 417, etc.)

Další varianty

  • Black
    On stock

11,45 € tax incl.

Availability: In Stock

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Progressive Spring for PSG / SR25 by Guarder

This premium spring by Guarder is designed for AEG rifles like PSG and SR-25 with extended gearboxes and 19-tooth pistons. 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 PSG Springs

Guarder PSG springs are available in various stiffness levels: SP100, SP120, and SP150, offering different levels of muzzle velocity and desired performance. The resulting muzzle velocity is influenced by many factors, including proper air-sealing, nozzle operation, cylinder type, barrel length, and diameter. The stated values are purely indicative, and due to the full cylinder and extended PSG/SR-25 gearbox, you may achieve even higher performance with barrels longer than 470 mm.

Spring Type PSGSP100SP120SP150
Muzzle Velocity104 - 110 m/s122 - 131 m/s152 - 161 m/s

Warning

When replacing the spring, make sure that the end of the spring with 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 rifles TM PSG and guns with V2.5 gearbox (SR-25, CA SCAR-H, E&C 417, etc.)
  • Material: Tempered Si-Cr wire
ColorBlack
Muzzle velocity (m/s)120 (m/s)