This video confirms everything we thought (hoped) about Systema’s new Infinity gearbox – stylised as ထ (the symbol for infinity).

Big Picture

  • Scheduled release Spring 2021
  • Available first as a drop in Value Kit
  • Fully compatible with current Systema and luxury 3rd party receiver sets (e.g. HAO)
  • Fully compatible with current Systema magazines
  • Price TBC


  • Brushless motor built into gearbox
  • Lipo in buffer
  • Grip is empty – RS grips can now be used without major modifications
  • Dual sector gear (DSG) and pre-cocking as standard
  • M130 cylinder required to achieve approx. 90+ m/s, due to DSG and short 150mm barrel used
  • Combination of brushless motor, DSG and pre-cocking provides the same level of trigger response as GBB
  • Cycle rate for burst and auto can be set between 400 and 1200 RPM
  • Many other preferences can be programmed (e.g. pre-cocking position, active breaking)
  • AEG gear noise is absent

Here are the relevant stills from the video:

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