Manufacturer: Airtech Studios
Type: M-nub Trolley
Compatibility: M4 and Scar Maxx Hop-up chambers
Materials: Ultra-tough polycarbonate
Comments: The TDC (Top Down Centre) Trolley is designed for the Maxx Hop-up chambers to incorporate the use of tensioner nubs specifically for Flat-hop builds (although some R-hop set-ups would work also). Depending on the tensioner nub of various sizes and brands you tend to use can help on the consistency, accuracy or achieve longer distances for your shots.
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