Varenr.:
4,3 on Trustpilot · 626 reviews of our shopWe ship as soon as possible
Expected delivery: 1–3 working days
See it in our shop in Aulum, Denmark – directions and opening hours
Part ofHPA Build Kit for M4 AEG (V2 Gearbox)
View the kit →
- 14-day right of withdrawal and 365-day returns
- Shop and workshop in Aulum, Denmark
About Gearbox Version 2 for 8 mm Bearings
Tired of stripping everything out of your mechanical version 2 gearbox, just to use the trigger and the shell on their own for HPA?
Then this gearbox shell is the right choice if you are considering Polarstar F1, Jack or Wolverine products.
The only extra part you need to buy is a trigger.
After countless shimming problems while tuning this gearbox, we had to measure it up. We found that the shell has a few slight misalignments that make proper shimming impossible.
The piston/cylinder section, however, is fine – which makes it an obvious choice for HPA systems.
Info:
Gearbox version 2.
Fits M4, M15, M16, MP5 and some other replicas. Check which gearbox version your gun uses.
Bearings: 8 mm
AEG-ready: No – intended for HPA builds only.
Delivery and returns
Shipping options and prices for your country are shown at checkout.
Full 14-day right of return with a money-back guarantee. Unused items in unopened packaging can be returned for up to 365 days in exchange for a gift card. Easy returns via our returns portal. Read more in our terms and conditions.
