- High Quality Build
- Interlocks Perfectly
- 8mm Steel Bearings
A replacement Gearbox Shell for Version 2 accepting Airsoft AEG Gearbox created by Action Sports Games as part of their Ultimate Upgrade Range of Airsoft Components and Parts.
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.
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 Next Day
Highlands / Islands
* 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.
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.
The Gearbox shell is constructed from Alloy, and is finished with a Low Friction Chromium Plating which reduces drag on parts and is perfect for handing a wide variety of Airsoft Greases and Lubricants, and features Steel Bearings, with a Polymer Selector and Tappet Plate. The Gearbox is compatible with a wide variety of Version 2 Gearbox accepting AEG, and comes with a M4/M16/AR Platform Tappet and Selector Plate for M4 Builds. The set comes pre-fitted with 8mm Steel Bearings, which are high quality and durable for High Tolerance builds. The gearbox has been designed perfectly, and interlocks together to create a really solid base for building upgraded guns. This Gearbox is perfect for those Airsoft Skirmishers who are looking to replace a damaged gearbox, or for those who are looking for a great starting point for a fully Upgraded AEG.
- Part of Action Sport Games' Ultimate Upgrade Range
- Perfect Spare or Replacement Gearbox Shell
- Great as a starting point for a Gearbox Upgrade
- Version 2 Gearbox for Version 2 Compatible Airsoft Electric AEG
- Version 2 Tappet / Selector Plate for M4 / M16 / AR Platform Rifles
- Copper Headed Selector Plate
- High Quality, High Strength Gearbox Screw Set Included
- Pre-Fitted High Performance 8mm Steel Bearings Set
- Low Friction Chromium Plated Gearbox Shell
- Locks Perfectly Together
- Shell: Version 2 (V2) Accepting Airsoft AEG
- Selector Plate: M4 / M16 / AR Platform Rifles
- Tappet Plate: M4 / M16 / AR Platform Rifles
- 'MADE IN TAIWAN'
- 'U ULTIMATE'
- Ultimate Gearbox shell V2 Gearbox
- Gearbox Screw Set
- 8mm Steel Bearings Set
- V2 M4/15/16 Tappet Plate
- V2 M4/15/16 Selector Plate
Internal Part Type
Alloy Shell, with Polymer Parts
Internal Part Construction
Part for Power Source Type
Electric Part Specific
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!
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.