Get more accuracy over longer distances with the Airtech TDC (Top Dead Centre) Trolley Converter.

The trolley system functions perfectly with R-Hop and Flat-hop setups by applying consistent downwards pressure onto the BB. The longer patch improves accuracy and consistency from shot to shot, typically for sniper DMR builds.

This converter fits onto the stock hop chamber retaining the standard adjustment functionality. Once installed you have a fully functional TDC hop while keeping the original hop-up unit designed for the gun preventing misfeeding or double feeding which can occur with aftermarket hop-up units.

Features

• Eliminates unwanted movement in the adjustment arm
• M-nub applies even force through the bucking, onto the r-hop patch or flat hop

Compatibility

• PROWIN M4 AEG Hop-up Chamber

Recommended Hop-up type

• R-Hop (Elvish, Psionic, Silent Sniper)
• Flat hop
• Maple Leaf MR Hop / Super Macaron / Super Silicone

Installation Notes

• Modifications to the outer barrel are required for this upgrade to function/fit
• Full instructions are found in the instruction manual, you should familiarise yourself with all the steps before proceeding with installation