- Full gearbox tune-up kit
- For M4/AR15 AEG with Version.2 gearbox
- M120 spring provided
The Guarder tune-up kit is intended for those building a gearbox from scratch, or those who want a smoother running gearbox in their M4/AR15 AEG. The set includes an M120 main spring, bearing spring guide, polycarbonate piston, vented piston head, shims, 6mm steel bushings, air seal nozzle, enhanced tappet plate, steel gears, chromium-plated cylinder and stainless steel cylinder head. No longer do you have to mess around figuring out which parts work best with others, just throw this kit inside your gearbox and save yourself the compatibility worries!
Fast Delivery
Delivery & Postage
Here at Patrol Base we ship all around world, with delivery not only to the UK, but to most of the EU and select Worldwide locations as well. We provide a working day by road service via our handpicked courier services, simply buy your Airsoft guns with us and we'll have them delivered directly to your door.
For more information and to see the country we deliver please check out our Delivery Information Page.
Estimates
Below are some rough postage prices for orders. Please note these are subject to change, and are only a rough guide. For more accurate postage estimate please use the Postage Calculator at the basket.
UK Standard
£4.95
Approx.
UK Next Day
£6.95
Approx.
Highlands / Islands
£12.99*
Approx.
EU
£12.99+*
Approx.
* Please note that Scottish Highlands, Islands and EU post prices can vary wildly. Prices range from £8.99, up to £29.99, so please ensure you refer to the Postage Calculator at the basket for the lowest possible price.
Returns
We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.
You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.
For more information on returning products, and how to do it please visit our Returns Policy Page.
Description
Features
- Complete gearbox internals set
- High grade components
- Includes M120 spring (high power, suited to DMRs)
- All of Guarder's best bits in one set!
- For M4/AR15 AEG with Version.2 Gearbox
- Includes
- Air Seal Nozzle
- Polycarbonate Piston
- 6mm Steel bushings
- Teflon grease
- Steel gearset
- Chromium-plated cylinder
- Stainless steel cylinder head
- Vented Piston head
- Enhanced tappet plate
- Ball-bearing spring guide
- SP120 Spring
- Shim set
Package Includes
- Guarder Full Tune-Up Kit for M4/AR15 AEG - M120
Specification
General
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Internal Part Type
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Cylinder, Cylinder Head, Gears, Nozzle, Shims, Spring, Spring Guide, Tappet Plate, Bushings, Piston Head & Parts,
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|---|
Weight and Dimension
 |
Approx. 0.311kg
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|---|
Part Specific
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Part for Power Source Type
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Electric
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|---|---|
 |
|
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Package Includes
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Electric Part Specific
 |
V2 Gearbox
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|---|---|
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Gearbox Version Compatibility Variant
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Version 2
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Spring Specific
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Spring Manafacturer Power Rating
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Approx. M-120
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|---|---|
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Spring Approximate M/S
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Approx. 120m/s, using 0.20g BB
|
|
Spring Approximate FPS
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Approx. 393fps, using 0.20g BB
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Bearing Specific
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Spring Guide Bearings
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Yes
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|---|
Size guide
Parts Fitting
Upgrades and Downgrades should only be undertaken by experienced players, or Airsoft Technicians. Please note, changing any internal parts of a weapon voids its warranty unless done in-house by our staff.
Please ensure that when fitting parts the part purchased is the correct part, as once a part has been fitted we cannot accept return.
We do know that players love to tinker, so we're here to give you help should you require it, and if needed you can get in touch with our workshop for more help!
Unique Parts
Please note that some parts may be unique to a specific brand of weapon. For example: Parts for an ASG M4A1 may not fit an ICS M4A1.
Parts from the same brand typically have a high chance of fitting, though be warned, some replicas use unique parts, so please ensure the part will fit before you attempt to fit it.
If you require help with fitting any parts feel free to get in touch with us via our Contact Us Page.
For more information with fitting parts, or should you require help, feel free to get in touch with our Workshop Department via our Contact Us Page.
Terms and Conditions relating to parts fitting can be read on our Terms and Conditions Page.