Modify

Modify S120 AEG Upgrade Spring

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  • Modify S120 AEG Upgrade Spring

Modify

Modify S120 AEG Upgrade Spring

Sold out

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Description

Features

  • Model:  S120 Irregular Pitch Spring for AEG
  • Material: Class A Piano Wire
  • Power: 390-420 FPS (FPS may vary depending on rifle)
  • Very durable and strong
  • Irregular pitch coiling for enhanced performance

Installation Tip

  • Install spring with tighter coils at the back (spring guide side)