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Rocket Airsoft M100 AEG Spring. Silver type upgrade spring that is non-linear. Fits in all gearboxes. A lower FPS than standard for faster RPS builds, lower field limits, or guns that want to last longer with less strain on its parts. (please note: packaging may be generic or labeled as 'Rocket Airsoft', but is made by SHS OEM) A standard spring for FPS ranging in the 320-330 or so. Silver steel make.
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🇺🇸 Ship from USA · On Agora since 2026
$9.99