Army Force Reinforced 16:1 Full Tune-Up Kit for M4


Army Force complete tune up kit is designed to replace all major compression components & Gearset inside your V2 M4 gearbox. This is kit is perfect for replacing stock components that may not be up to spec. I would also recommend replacing stock motor with upgraded version

Out of stock


Package includes

  • 16:1 Army Force Gear set
  • Metal M4 Air Nozzle (21.5mm)
  • Aluminum Cylinder Head (double o-ring)
  • Aluminum Piston Head w/bearing
  • Steel Upgraded V2 Spring Guide
  • M120 Spring (390-415FPS)
  • Stainless Steel Cylinder


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