Ultra durable silicone chrome steel construction with progressive winding
Variable tension, reduces stress, wear and tear for your gearbox
Designed to last thousands of rounds without any compression or deformation
Reduces stress, wear and tear for your gearbox due to less compression force at rest

Manufacturer: Retro Arms

Specifications:

Velocity: Approx. 320~380 FPS
Compatibility: Tokyo Marui NGRS Airsoft AEG Gearboxes
Material: Steel

(Write a review)

by Kyle H. on 06/25/2025

"Not for TM NGRS AEGs.
NGRS gearboxes use a much shorter spring than standard AEGs. These springs are longer than standard AEG springs, resulting in the piston being unable to fully retract. If you install this into your NGRS gearbox you will most likely destroy the piston rack, or even the gears.

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Retro Arms Gearbox Spring w/ Progressive Winding for Tokyo Marui NGRS Airsoft AEG Rifles (Model: M100)

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Description

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Reviews

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Find in Store

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