ASG ULTIMATE Ver.II M4 AEG Complete Gearbox, High Speed (M100 Spring)

Ex Tax: £124.17
Brand: ASG
Product Code: (SK1587) ASG Ver.II M4 Gearbox M100
Availability: 2

Available Options

* Spring Type :
Battery Connector (Required) :

* Wiring Front / Rear:

ASG ULTIMATE Ver.II M4 AEG Complete Gearbox, High Speed (M100 Spring)

A complete 2nd Generation Version 2 gearbox from ASG. This Enhanced Lonex gearbox features all upgraded Lonex internal parts. It is compatible with all TM style AEGs, the FPS we see with these gearboxes naturally depends on hop and barrel but should provide between 340 and 350 FPS with a .20g BB on average.

These are premium gearboxes and represent a significant performance increase over all stock gearboxes on the market.


  • 2nd generation super gearbox
  • Air seal nozzle (M4)
  • Enhanced tappet (M4)
  • Aluminum cylinder head
  • Steel cylinder
  • Aluminum piston head
  • Enhanced 10 steel teeth piston
  • Tune-up spring M100
  • Steel ball bearing spring guide
  • Anti-heat electric switch
  • Enhanced gear (Original ratio)
  • Enhanced anti-reversal latch
  • Enhanced trigger
  • Anti-Heat Selector Plate for M4 Series
  • Cut Off Lever for Gear Box V2
  • Safety Cover for V2 Series
  • 8mm ball bearing
  • Gear Box Spring Set for V2
  • Shim set
  • Teflon gear grease
  • 16 AWG Silver Plated Silicone Wire

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