Jefftron Switch Brake With Wiring Micro Switch Replacement


Jefftron Switch Brake With Wiring Micro Switch Replacement





Jefftron Switch brake with wiring Micro switch replacement

This is a professionally made MOSFET with active braking, which can be disabled by removing the red jumper.

This device is designed to replace the microswitch in the specific gearbox V2. There is no modification needed.

In semi-fire mode the piston isn't partially stretched, the spring is fully released, parts in mechbox aren't under strain and the nozzle locks the hop-up chamber in greater part (depends on ROF).

The Jefftron Active break solves multiple shots in semi mode with weapons with very high rate of fire (ROF).

This device increases your guns rate of fire and your battery will last longer than it would with basic wiring.

Key Features:

  • Easy installation inside the gearbox version 2, which replace microswitch
  • Presoldered wires allow faster and easier installation into the gun, it is long enough for all kind of weapons. Simply cut wires to the required length and attach connectors (included in package)
  • On the devices are presoldered high quality 2 black wires 1,5 qmm (AWG16) with with thin and hard MPPE insulation, length 300 mm to the motor and 700 mm to the battery. The blue wire 0.34 qmm (AWG24) with a length 1000 mm is used for connection anywhere on the red cable
  • In package is included 1000 mm red wire 1,5qmm (AWG16) with with thin and hard MPPE insulation
  • Coated with lacquer, it protects the device against water
  • If you want to use your own wires, choose variant without wiring
  • Disable active braking by unplugging red jumper, when you gun has Rate of fire under 20bb/s, otherwise, it could lock up trigger on SEMI due to too low gear speed.
  • Motor will be under less stress without active braking.
  • Designed for spring up to M160 (equivalent for current 75A single shot fire or 25A burst fire for max. 30s)
  • Specified for common batteries up to 17V (Ni-xx 8.4 - 12V, lipol 7.4 - 14.8V)
  • Active braking uses excess energy from the motor to stop it. The braking effect is the most powerful with high torque motor
  • No current consumption in the idle mode


  • Device with wiring
  • DeanT connector male
  • 30A mini fuse
  • 4 x faston female 2,8mm
  • 6 x black heat shrink tube 3,2mm - length 20mm
  • 3 x black heat shrink tube 4,8mm - length 20mm
  • Installation manual in English

Remember - if you don't feel comfortable carrying out your own gun servicing, repairs or upgrades, we have experienced airsoft technicians in-store and can do the work for you. You can even book a service with us online by clicking the link below!

Book a Gun Service.

To buy an airsoft weapon in the UK you must have a valid airsoft defence.

This is not a licence, it is basically just proof that you intend to buy an airsoft weapon for use in airsoft.

An airsoft defence could be a UKARA or membership with the British Airsoft Club, and various other forms of defence.

You can only obtain an airsoft defence once you are over the age of 18.

To get an airsoft defence the law is that you should play at least 3 games of airsoft, and that you must have been playing for at least two months.
You can still buy an airsoft gun without a defence, provided you are 18 or older. If you choose to do this we would, by law, two tone (paint in a bright colour) parts of your chosen weapon. This is because an airsoft gun is considered a RIF aka Realistic Imitation Firearm, because they are so close to the real steel, whereas when you paint parts of it in a bright colour it becomes an IF aka Imitation Firearm. The reason being that the bright colours make it look less realistic to the public, and therefor less likely to be mistaken as real, were it to be used for any other purpose than airsoft.

When you order a gun from us you will need to add your defence details in the comments section of the cart. If you do not have a defence you will need to write the colour that you wish to be used for two toning your airsoft weapon.

Here is what's stated in the VCRA (Violent Crime Reduction) Act:

For airsoft skirmishing, the Association of British Airsoft is putting in place arrangements to allow retailers to check that individual purchasers are members of a genuine skirmishing club or site. The key elements of these arrangements are:
1. new players must play at least 3 (three) times in a period of not less than two months before being offered membership
2. membership cards with a photograph and recognised format will be issued for production to retailers
3. A central database will be set up for retailers to cross-check a purchaser’s details
4. member’s entry on the database will be deleted if unused for 12 months.
The defence for airsoft skirmishing can apply to individual players because their purchase of realistic imitation firearms for this purpose is considered part of the “holding” of a skirmishing event.
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