Airtech Studios Prometheus Rotary Hop Up TDC Converter Kit

Price: $7.49 – $14.99 — In stock at 2 retailers.

Prices last checked July 29, 2026 across 2 retailers.

Airtech Studios Prometheus Rotary Hop Up TDC Converter Kit The TDC (Top-Down-Centre) Trolley Converter is designed for the Prometheus Hop-up Chamber to radically upgrade the applicable hop-up method inside the chamber. 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. As a result stable Hop friction and acceleration leading to tighter groupings. 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. Outer Barrel Modification Please note that this kit will require modification to the outer barrel of your airsoft replica, however, is straightforward. Full instructions on how to modify will be included in the instruction manual to download. The results are worth your while! The full installation manual provided, please follow all steps to ensure a successful install. Package Contents 1 x TDC Bracket 1 x TDC Trolley Unit 2x M-Nub 1 x Hop-up Arm 1 x M2 Bolt 1 x M2 Nut

Airtech Studios Prometheus Rotary Hop Up TDC Converter Kit price comparison: the lowest price is $7.49 at eHobby Asia, the highest is $14.99, and the median across 2 tracked listings is $11.24. Comparing retailers can save up to 50% ($7.50) versus the highest-priced listing.

Compatible with: VSR-10