Madbull M130 AEG Upgrade Spring, Yellow

$18.35
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Madbull Airsoft AEG Upgrade Spring

 
 
Calculated carefully by computer and test by 100000 times punching. Our spring has proved that the length and force are still consistent. It is a MadBull spring and it is "colorful." 

Other features: 
  • Consistent >100000 shots
  • Non-liner design (calculated)
  • Color coating to reduce effects from environment
  • Design & Made by experienced engineers
  • Premium quality German piano wire

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