Airtech Studios Maxx TDC Trolley for Flat-Hop Nubs i4 pro Simple attach the wire and

Simple attach the wire and small battery

Holds 23 rounds

Comes in a variety of colors and camouflage patterns

Certified to exceed ANSI Z87

Will fit in all M4 and rear stocks

Airtech Studios Maxx TDC Trolley for Flat-Hop Nubs i4 pro Simple attach the wire andAirtech Studios Maxx TDC Trolley for Flat Hop Tensioner Hopup Nubs 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 choose to tend to use can help on the consistency, accuracy or achieve longer distances for your shots. The TDC trolley will