Prometheus

Prometheus Non-Linear Upgrade Spring

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Now: $21.00 - $23.00
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Description

  • Non-linear spring design made of high quality spring steel
  • Upgrade spring allows you to custom-tune your AEG's muzzle velocity
  • Naming convention follows meters per second (with a 0.20g BB), allowing you to quickly reference how strong a spring should be
  • Color-coded for quick reference in a parts bin even if you lose the packaging
  • Fits in most gearboxes that accept standard TM-spec springs

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