This TDC (Top Down Centre) Trolley is designed for the RetroArms Hop-up chambers to incorporate the use of M-nubs with R-Hop patches gives an improvement in accuracy and consistency from shot to shot.

The M-nub ensures an evenly distributed force is applied onto the bucking down to the RHOP patch. This ensures the patch can maximize its effect on the BB for the most stable and uniform spin for the much desired R-hop performance.

The trolley works well with flat hop, Maple Super Macaron and MR hop buckings.

Features

• Optimised slide bars to prevent tilting and give a tighter fit
• Extended 5mm contact area to cover more hop windows improving air seal
• 3M adhesive to attach M-nub to trolley foot
• Tough polycarbonate construction

Compatible hop chambers

• RetroArms CNC hop up chamber
• RetroArms CNC Evike/EMG blue version
• RetroArms CNC ICS ver

Installation notes

We recommend very lightly lubricating the surfaces which move against each other with a silicone based lubricant.