- CNC Aluminium build
- No bucking required
- Best used with MechLabs HPA Engines
If you're working on an ultra-premium HPA build, the Mechlabs ROTO Pro CNC Bucking-Less HOP-up Chamber for HPA is an essential part! An innovative bucking-less design made entirely from CNC-machined aluminium, the ROTO Pro uses a precision micro-injected nub built into the HOP-up arm, eliminating the HOP-up bucking from the equation entirely.
This means no more replacing HOP-up buckings once they wear out, less hassle with installation and a far stronger, more precise HOP-up effect, especially when used with high-energy setups running heavy BBs. The rear collar of the unit is adjustable, allowing you to tune it to your nozzle length, though it requires a micro-adjustable nozzle, so it won't work with AEG builds.
The "Pro" version of the ROTO boasts a full CNC aluminium build, a more robust alternative to the ROTO Standard. The HOP-up dial is also enlarged to provide more precise dialling and more setting options, so you can tune to perfection.
Compatibility-wise, this is strictly for HPA setups and is ideally paired with a MechLabs HPA engine. Other compatible engines include PolarStar Jack, Kythera and F2, Wolverine Inferno Gen.2, Reaper and Hydra, and Gate PULSAR engines. These engines all require nozzle tuning either via the engine's adjustment or by adding shims for perfect feeding and air seal.
Using a MechLabs X-MOD, XX-MOD or NEXXUS engine with the ROTO allows you to take advantage of the ZERO Cap system, which means you can thread the HOP-up chamber into the front of the HPA engine to prevent alignment issues and maximise efficiency.
Fast Delivery
Delivery & Postage
Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.
For more information 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 a more accurate postage estimate please use the Postage Calculator at the basket.
UK 3-5 day Standard
£6.95
From
1-2 Working Day Dispatch UK mainland
£9.95
From
Highlands / Islands
£24.99*
From
* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please 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
- Full CNC Aluminium build - More precise dialling and increased strength
- NOT Compatible with AEGs - Micro-adjustable nozzle length is required
- Ideal for high FPS & heavy BBs - This will produce the best results
- Enlarged CNC adjustment dial - Offers more HOP-up settings & more precise adjustment
- No bucking required - Saves hassle with installation and easily worn parts
- Adjustable rear collar - Allows the nozzle position to be tuned for perfect feeding
- Micro-injected rigid nub - Precision contact surface provides a superior Magnus effect
- MechLabs ZERO Cap system - Threads into the front of Mechlabs engines for flawless alignment
- Compatibility:
Package Includes
- MechLabs ROTO Pro CNC Bucking-Less HOP-up Chamber for HPA
Special Instruction
The MechLabs ROTO is engineered strictly for HPA setups and will not function with standard AEG gearboxes. To achieve a true airtight seal and maximum FPS consistency, the host HPA engine must feature a micro-adjustable nozzle or utilise a specific nozzle length configured to match the ROTO’s unique O-ring seal.
Specification
General
Parts & Accessories Type | HPA Internal Parts |
|---|---|
Internal Part Type | Hop-Up Unit |
 | Custom Parts |
Construction
 | Black, Red, |
|---|---|
 | CNC Aluminium |
Internal Part Construction | Aluminium |
Part Specific
Compatible Power Source Type | HPA |
|---|---|
 | M4 / AR-15 / M16 |
 | Assault Rifle |
Package Includes | Hop Unit |
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.