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A complete gearbox maintenance and tuning service for electric pistols and sub-machine guns. 


The gearbox is tuned so it runs as smoothly, efficiently and reliably as possible while also significantly decreasing the noise generated through normal gearbox operation. 

Every AEP and CMG will benefit from this service, be it TM, Cyma, JG or WELL.


Included in this service is:



  • All Necessary Shims




The cost of the AEP Service also includes all Labour required to perform the detailed upgrades. Any additional time will be charged at the standard rate of £45 per hour.


What I do:


  • Full strip down and deep cleaning of all parts in the gearbox

  • Correctly shimming the gears

  • Polishing the piston rails to reduce drag on the piston

  • Correctly re-greasing the gearbox

  • Sealing the Cylinder head against air loss

  • Setting the motor height

  • Check for pre-engagement (if it is occurring) and advise on solutions

  • Cleaning the Hop unit and checking for faults

  • Correcting any other issues in the gearbox which will not incur extra costs: re-soldering wires, re-insulating stripped wire etc


AEP Service

  • Please note that all custom work will be added in to our queue, which is typically 3-4 weeks long. 

    We will email you with details about your slot; collection can be arranged any time before your slot is due.

  • If you would like to have your build collected, please email us with the collection date, collection address and a contact mobile number we can hand over to DPD. Collections are handled by our local DPD Ship-to-Shop hub - 3000RPM.

    You will receive a text notification of your hour pickup slot on the morning of the collection. 

    Please note that we cannot guarantee any specific collection time slot. Missed collections will generally be attempted once more the following day. You can rearrange and track your collection using the DPD Mobile App.

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