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Rocket Airsoft AEG Upgrade Spring



Product Details

Rocket Airsoft AEG Upgrade Spring

The Rocket AEG upgrade spring is built tough and made to last. Constructed of high grade stainless steel and formed with an irregular pitch, the Rocket (SHS) upgrade springs are packed with all the features found in popular springs today, and have greater reliability and performance than most in the same price range.


  • Strength: Made out of stainless steel. Increased tension and durability.
  • Oil tempered spring design: for improved durability and consistency
  • Irregular pitch: Variable tension. Reduces stress, wear and tear for your gearbox
  • Easy installation: for FPS increase
  • Compatibility: Designed for all versions of Airsoft AEG gearboxes

Spring Power Chart. (% / FPS)

FPS estimate based on average power output. Exact FPS result may vary based on alignment, installation, inner barrel, cylinder and other factors.

  • 120% (M90) ~280~340 F.P.S.
  • 140% (M100) ~320~380 F.P.S.
  • 150% (M110) ~330~390 F.P.S.
  • 160% (M113) ~340~400F.P.S.
  • 170% (M115) ~350~420 F.P.S.
  • 190% (M120) ~360~450 F.P.S.
  • 210% (M125) ~400~470 F.P.S.
  • 235% (M130) ~420~500 F.P.S.
  • 260% (M140) ~450~550 F.P.S.
  • 300% (M150) ~480~600 F.P.S.
  • M160 : ~530+ 20 F.P.S.
  • M170 : ~560+ 20 F.P.S.

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