Airtech Studios TDC Trolley for ER-Hop & M-nub (6mm Length) - MAXX Hop-Up Ponchos A fully retractable stock allows

A fully retractable stock allows you to make the MP7 much shorter in just a matter of seconds

Automatic magazine cut off function which stops the rifle firing on empty

Quite a hefty unit coming in at 160g

which is a nice touch

Airtech Studios TDC Trolley for ER-Hop & M-nub (6mm Length) - MAXX Hop-Up Ponchos A fully retractable stock allowsThe TDC (Top Down Centre) Trolley is designed for the Maxx Hop up chambers to incorporate the traditional usage of M nubs which works perfectly with the ER Hop (elongated R hop patches, typically of 6mm in length for long distance shots). The longer patch would achieve an improvement in accuracy and consistency from shot to shot, typically for sniper DMR builds. The M nub ensures an evenly distributed force applied onto the bucking down to the RHOP