Airtech Studios Maxx TDC Trolley for Flat-Hop Nubs i4 pro is a 20R length short

is a 20R length short M4 magazine that holds an incredible 170 round bb capacity and offers the same reliability that all PTS magazines have long been famous for

Here are a few highlights

Organizer compartment with multiple sleeves and pockets

Simple attach the wire and small battery

Expanded tube size fits up to 1200mah LiPo / 2000mah Li-Ion batteries

Airtech Studios Maxx TDC Trolley for Flat-Hop Nubs i4 pro is a 20R length shortAirtech 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