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Airtech Studios TDC Converter Kit
(Model: KWA QRF MOD)

ID: 117417 (HU-AS-TDC-KWAQRF-M3)
TDC-KWAQRF-M3
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Airtech Studios

$18.00

MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.

Product Description

Features

  • 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
  • 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
  • The most stable and consistent flight path over long distances!
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.

M-Nub
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.

Manufacturer: Airtech Studios

1 Customer Review

(Write a review)

by Chang Wai H. on 10/28/2025
"Awesome product utilizing the original hop up chamber that is perfect for the evo. I've tried the Maxx and ultimate chambers but kept having compression or double feeding issues so thankfully this works perfectly for my Rhop and flat hop builds. The hop is completely TDC and noticed a good accuracy and distance of the bb. Love how they can convert it into a wheel based adjustment with top down hop. Mostly positive review is all aspects , only down side is i cant use my chunky lipos anymore inside the evo and limited to my thinner ones, but that's ok as i see performance as more important. I'll switch to a mock pew box later on if i need more juice. recommended though overall

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Airtech Studios

About Airtech Studios

At Airtech, we pride ourselves on finding and developing bespoke Airsoft accessories that enhance your Airsoft gaming experience.

Our team at Airtech Studios strives to develop unique innovations to push the boundaries of Airsoft performance to its limits and beyond.