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Modify M4 Quantum Wiring Set
Fits the KWA M4 GBB airsoft rifle
Comes in Black or Flat Dark Earth (tan) colors
Great for outdoor
**NOTE: These batteries have been changed to a 15c rating
Rocket Airsoft M170 AEG Spring - Japanese Black Steel Motor Grips Modify M4 Quantum Wiring SetRocket Airsoft M170 AEG Spring Japanese Black Steel. One of our most popular airsoft upgrade springs! Very high quality steel made spring to get your gun running a high FPS. Fits in all standard gearboxes. This is your standard upgrade spring strength for upgrades. This is a non linear spring utilizing Japanese made steel spring material. Black color to differentiate spring types.
