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Top-Down-Center (TDC) Bracket Integration Kit for: ASG Scorpion Evo Hop-up Chamber

Proveedor Airtech Studios

Product Description

The TDC (Top-Down-Centre) Trolley Converter is designed for ASG Scorpion Evos Hop-up Chamber to radically upgrade the applicable hop-up method inside the chamber.

Good news this kit will NOT require any modification to any part of the Evo. 

Full step-by-step installation can be downloaded using this link CLICK HERE TO DOWNLOAD


FAQ Frequently Asked Questions

1. Is this difficult to install?

We recommend that you have some experience with R-hop builds before attempting and please download the instruction/ Installation manual before installing. Consult a gun tech for help if needed or contact us for any help.

2. Do I need an R-HOP patch?

This kit is designed to work with all types of hop from standard buckings to R-hop. There are many brands of R-hop in the market, much like Psionic, and Silent sniper that is easily available in the market as a drop-in patch. Alternatively, there are bucking available from companies like Maple Leaf with their macaroon buckings that perform much like a standard R-HOP does.

3. Should I upgrade my inner barrel?

It's not necessary as stock barrels are pretty good quality these days and could still function well with the R-HOP builds.

4. How do you remove the bracket?

It is possible, but not recommended once it is glued into place to prevent further deviations of the setup in the future. It is possible to still service your hop-up chamber and its components for cleaning without removing the TDC converter bracket.

5. Can it work on another hop-up chamber?

No. This is designed specifically for the ASG Scorpion Evo Stock Chamber. We have other kits available for other brands and models too though.

6. What bucking would be the best?

The stock Scorpion Evo ones are good, but other brands like Prometheus and Modify brands have boundless buckings.

7. Will this work for Flat-hop?

Yes, it will, and for G-hop too. There are plenty of videos of how-to and what you need for this setup. Once you have this in place, you will notice a huge difference in performance and accuracy.

8. How far can R-HOP travel?

For a 1J setup and the right settings, 60-70m using 0.28g BB

Types of Hop the Conversion Kit can be used for

The kit may be used in unison with all bucking types and also works perfectly for R-Hop & Flat-hop setups utilizing a trolley system that applies hop perfectly downwards for the most consistent pressure distributed onto the BB. As a result, increased accuracy over longer distances.

Why TDC (Top-Down-Center)?
The idea of using a Top-down-center is a well sought after functionality in airsoft that maximizes the amount of friction allowed onto a BB round and there are third party chambers that can achieve this.  However, switching to a third party chamber could carry a series of risks such as double BB feeding, misfeeding, and inconsistent air compression. That is the reason why we opted for an upgrade option for the original hop-up chamber that is specifically designed for the Scorpion Evo Original Chamber.

We tested the performance of many types of M-nubs for its firmness, durability, and ability maintain its shape under intense pressure. We settled with a version that ticks all of these boxes. 2x M-nubs are included that covers the length of the hop-up window to maximize the amount of exposure onto the bucking and then BB. This ensures the most stable hop, while the BB accelerates through the hop mound/ Arch. 

The full installation manual will be provided to download soon, please follow all steps to ensure a successful install.

Package Contents

1 x TDC Flat Foot Hop-up Trolley & Spring

1 x TDC Arched Foot Hop-up Trolley & Spring

1 x TDC Spring

2x M-Nub

1 x Back Bracket

1 x Hop Dialling Wheel

1 x M2 Bolt

1 x M2 Nut

1 x M3 Bolt

1 x M3 Nut

Unlocking the Full Potential of the Scorpion Evo Chamber

The TDC Converter Kit is specifically designed to ensure optimal vertical pressure on the inner barrel window of the Hop-up window.

The kit is specifically engineered to seamlessly integrate the existing hop-up chamber with precision-designed brackets.
These brackets effectively guides a trolley, allowing the hop force to travel in a consistent downward motion without any axial movement.

TDC Micro Adjustment

Fine-tune the perfect spot for your build. The hop force applied strictly from Top to Bottom creating the most stable and evenly distributed exposure onto the BB spin.
As a result the most stable and consistent flight path over long distances!