Elite Force Complete Gearbox w/ CFR Spring

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Replacement gearbox for all Elite Force M4 CQB Series AEG Rifles. This high quality Version 2 gearbox comes fully built and ready to drop-in your favorite AEG, and features a high-tension CFR Spring and Micro Switch trigger. The integrated Quick Change Spring System makes it simple and easy to upgrade or replace the spring mechanism within this gearbox.


  • Compatible with All Elite Force M4 CQB AEG
  • Version 2 Gearbox
  • High Tension CFR Spring
  • Micro Switch Trigger
  • Full Metal Reinforced Tooth Piston
  • Quick Change Spring System
  • Reinforced Tappet Plate
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